firmname entryyr exityr exited radio homerad unkntype radTvSz yrsexp wilrandd wildists lms52 lms60 lms70 firmpdin firmpcin firmin firmin1 firmin2 firmin3 Admiral 1947 1979 1 1 0 1 12 2 1 2 2.406945 2.251292 1.609438 0 .5833333 .5833333 .1666667 .530303 .310606 Advent 1975 1 0 0 0 0 0 Air King Products 9:Air King Products, and Pathe Television (subsidiary) 13:CBS-C 1948 1957 1 1 1 0 6 15 -1.390384 .1111111 1.666667 1.777778 .1666667 1.777778 1.777778 Air Marshal 1951 1953 1 0 0 0 0 -1.390384 0 0 0 0 0 Altec Lansing 1949 1950 1 0 0 0 0 0 0 0 0 0 0 American Television 1951 1957 1 0 0 0 0 -1.390384 0 0 0 0 0 American Television and Radio 34: ATR Electronics 1955 1 0 0 0 0 -.8266786 0 0 0 0 0 Andrea Radio 1947 1978 1 1 1 0 10 11 1 1 -1.390384 -.8266786 -.7765288 0 0 0 0 0 0 Ansley Radio and Television 1948 1953 1 1 1 0 9 4 -1.390384 0 0 0 0 0 0 Approved Electronic Instrument Corp. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Arcturus Radio and Television 1948 1949 1 0 0 0 0 0 0 0 0 0 0 ARF Products 1955 1 0 0 0 0 -.8266786 0 0 0 0 0 Atwater Television 1949 1952 1 0 0 0 0 0 0 0 0 0 0 Audar 1948 1949 1 1 0 1 0 0 0 0 0 0 0 0 Automatic Radio Manufacturing 1949 1954 1 1 1 0 9 22 -1.390384 0 0 0 0 0 0 Bace Television 1947 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Bell Television 1949 1965 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Bendix Radio 1948 1957 0 1 1 0 12 10 -1.390384 0 0 0 0 0 0 Bowers Radio and Television 9:Bowers Battery and Spark Plug Company 12:Bowers Tel 1948 1953 1 1 0 1 10 1 -1.390384 0 0 0 0 0 0 Brociner Electronics Laboratory 1950 1953 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Browne TV 1955 1 0 0 0 0 0 0 0 0 0 Brunswick Radio and Television 20: Radio & Television Inc., Brunswick Div. 1947 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Calbest Engineering and Electronics 23:Calbest Electronics 1949 1968 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Caltech Electronics 1954 1 0 0 0 0 0 0 0 0 0 Cascade Television 1949 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Certified Radio Laboratories 1948 1966 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Chatham Television 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Clairtone Electric Corporation 1967 1 0 0 0 0 0 0 Colonial Radio Corp. subs. Sylvania 9: Sylvania Television 19:Sylvania Electric P 1949 1983 0 1 1 0 12 22 3 2 1.064711 1.131402 1.526056 .0645161 .7777778 .8422939 0 .7 .3809524 Color Electronics Corp. 1964 1 0 0 0 0 0 0 Colortronics 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Commander Television 1951 1952 1 0 0 0 0 0 0 0 0 0 Commodore Television Corp. (associated with Atlantic Video Corp.) 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Conar Instruments 1962 1 0 0 0 0 -.7765288 0 0 Conrac 1949 1962 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Cornell Television Inc. 6: Video Corp. of America 1948 1954 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Coronet Radio and Television 1948 1949 1 0 0 0 0 0 0 0 0 0 0 Cortley Television 1948 1950 1 0 0 0 0 0 0 0 0 0 0 Covideo 1951 1953 1 0 0 0 0 -1.390384 0 0 0 0 0 Crestwood Television Corp. 1953 1 0 0 0 0 0 0 0 0 0 Crosley 19:Avco Manufacturing 1947 1957 1 1 1 0 12 25 -1.390384 0 .8333333 .8333333 0 .8333333 .8333333 Customade Television Inc. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Delmonico International Corporation 1967 1 0 0 0 0 -.7765288 0 0 DeWald Radio Manufacturing 1948 1958 1 1 0 1 8 7 -1.390384 0 0 0 0 0 0 DuMont (Allen, B.) Laboratories 1946 1959 0 0 0 0 0 .9162908 0 2.816667 2.816667 4.666667 2.560606 2.560606 Eastern States Radio & Television Co. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Edison Television 1950 1951 1 0 0 0 0 0 0 0 0 0 0 Electro-Technical Industries 1949 1955 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Emerson Radio and Phonograph 1947 1973 1 1 1 0 12 22 1 2 1.504077 1.526056 -.7765288 0 1.766667 1.766667 1.166667 1.606061 .8030303 Espey Manufacturing Co. Inc. 1948 1950 1 0 0 0 0 0 0 0 0 0 0 Fada Radio and Electric 1948 1956 1 1 1 0 9 15 -1.390384 0 0 0 0 0 0 Farnsworth Television and Radio 9:Capehart-Farnsworth, Div. IT&T 23: Capehart Cor 1947 1965 1 1 1 0 12 17 -1.390384 -.8266786 0 0 0 0 0 0 Federal Television 1948 1952 1 0 0 0 0 0 0 0 0 0 0 Federal Video 1948 1950 1 0 0 0 0 0 0 0 0 0 0 Fisher Radio 1948 1952 1 0 0 0 0 0 0 0 0 0 0 Freed Radio 1948 1954 1 1 1 0 0 4 -1.390384 0 0 0 0 0 0 Garod Electronics 1947 1950 0 1 1 0 0 5 0 0 0 0 0 0 General Electric 1947 1986 0 1 1 0 12 21 3 3 2.054124 2.014903 1.526056 .109375 2.5 2.609375 .6666667 2.363636 1.295455 Gilfillan Bros. 1948 1949 1 1 0 1 9 22 0 0 0 0 0 0 Goldstar Electronics International 1983 0 0 0 0 0 Guild Radio and Television 1953 1 0 0 0 0 0 0 0 0 0 Hallicrafters 1948 1958 1 1 0 0 12 7 -1.390384 0 0 0 0 0 0 Harvey Industries 1989 0 0 0 0 0 Heath Company 1964 0 1 0 0 9 6 -.7765288 0 0 Hi-Par Products 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Hitachi Sales Corp. of America 1975 0 0 0 0 0 0 Hoffman Radio 20:Hoffman Electronics 35:Hoffman Products 39: Cortron Industries 1948 1970 0 1 1 0 12 8 0 1 0 .0953102 0 0 0 0 0 0 Howard Radio 8:Muntz TV 37:Television Manufacturers of America 40:TMA Company 1948 1973 1 1 1 0 11 22 1 1 -1.390384 -.8266786 -.7765288 0 0 0 0 0 0 Imperial Television 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Industrial Television 1948 1957 1 0 0 0 0 -1.390384 0 0 0 0 0 0 International Television Corp. 1948 1954 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Jackson Industries 17:Jackson Electronics and Television 1949 1955 1 1 0 1 0 14 -1.390384 0 .1666667 .1666667 0 .1666667 .1666667 Jamaica Television Manufacturing 1949 1952 1 0 0 0 0 0 0 0 0 0 0 Jewell Radio Corp. / Jewel Radio Corp. 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 JVC 1983 0 0 0 0 0 Kalmus, Natalie Television Co. 1951 1952 1 0 0 0 0 0 0 0 0 0 Kane Electronics Corp. 1967 1 0 0 0 0 0 0 Keeney (J. H.) & Co. 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Kent Television 1951 1964 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 Kloss Video 1981 1 0 0 0 0 Lehigh Television Co. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Lion Manufacturing 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Lytle & Cannon 14:Lytle Engineering and Manufacturing 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Magnavox 1948 1976 0 1 0 1 12 5 2 3 -1.390384 -.8266786 2.251292 .1607143 0 .1607143 0 0 .0454545 Magnavox sub. of Philips 50:North American Phillips Consumer Electronics Corp. 52 1976 0 0 0 0 0 .25 Majestic Radio and Television 15:Wilcox-Gay 1948 1958 1 1 1 0 12 8 -1.390384 0 0 0 0 0 0 Major Television 1948 1950 1 0 0 0 0 0 0 0 0 0 0 Manufacturers Television Co. 12:Tru-Vue Television Co. 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Mars Electronic Corp. 11:Mars Electronics 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Mars Television 1948 1957 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Mathes (Curtis) Manufacturing 1960 1 0 0 0 0 0 1 -.8266786 -.7765288 0 0 Matsushita Electric Corp. of America 1975 0 0 0 0 0 0 Mattison Television and Radio 35:Mattison Electronics 1949 1968 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Meck (John) Industries 1949 1951 0 1 0 1 11 3 0 0 0 0 0 0 Meissner Mfg. Div. of Maguire Industries 7: Meissner Manufacturing 1948 1950 1 1 1 0 12 6 0 0 0 0 0 0 Mercury Television & Radio Corp. 11: Pacific Mercury Television 29:Pacific Mercur 1950 1964 0 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Midwest Radio Corp. 7:Midwest Radio and Television 1949 1958 1 1 1 0 9 25 -1.390384 0 0 0 0 0 0 Mitchell Manufacturing 1950 1954 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Mitsubishi Electric Sales America 1980 0 0 0 0 0 Monarch Radio and Television 1951 1953 1 0 0 0 0 -1.390384 0 0 0 0 0 Motorola 1947 1974 0 1 1 0 11 11 3 2 2.251292 2.066863 1.740466 .0961538 .35 .4461538 0 .3181818 .2727273 MP Concert Installations 11: MP Television 26: M-P Engineering Co. 1950 1959 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Multiple Television 1948 1953 1 0 0 0 0 -1.390384 0 0 0 0 0 0 National Company 1948 1954 1 1 0 0 12 22 -1.390384 0 0 0 0 0 0 National Electronics Manufacturing 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 National Polytronics, Inc. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 National-Simplex-Bludworth 1950 1952 1 0 0 0 0 0 0 0 0 0 0 NEC Technologies 1989 0 0 0 0 0 New England Television 1947 1950 1 0 0 0 0 0 0 0 0 0 0 Nielsen Television 1948 1951 1 0 0 0 0 0 0 0 0 0 0 Noblitt-Sparks Industries 9:Arvin Radio 11:Arvin Industries 1948 1971 1 1 1 0 12 13 0 1 -1.390384 -.8266786 -.7765288 0 0 0 0 0 0 Norman Television 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 North American Audio Inc. 1962 1 0 0 0 0 0 0 Olympic Radio and Television 40:Olympic International 1948 1971 1 1 0 1 11 0 -1.390384 1.064711 -.7765288 0 1.5 1.5 0 1.363636 .6818182 Orion Electronic Co. Ltd. 1989 0 0 0 0 0 Pacific Vogue Radio and Television 1953 1 0 0 0 0 0 0 0 0 0 Packard-Bell 40:Teledyne Packard Bell 1948 1974 1 1 1 0 12 8 1 2 -.356675 -.8266786 -.7765288 0 .6 .6 0 .5454546 .2727273 Peerless Television and Radio 1950 1954 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Philco 37:Philco Ford Corp. 38:Philco-Ford Corp. 1947 1976 0 1 1 0 12 16 1 2 2.541602 2.24071 -.7765288 0 2.8 2.8 3 2.545455 1.363636 Philharmonic Radio Corp. 15:Philharmonic Radio and Television 1949 1958 1 1 1 0 0 3 -1.390384 0 0 0 0 0 0 Philmore Manufacturing 1949 1965 1 1 1 0 9 21 -1.390384 -.8266786 0 0 0 0 0 0 Pilot Radio 1948 1957 1 1 1 0 0 14 -1.390384 0 0 0 0 0 0 Pilot Radio Corp. (Jerrold Subsidiary) 1964 1 0 0 0 0 0 0 Pioneer Electronics 1985 0 0 0 0 0 Pioneer Television Co. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Prescott Television 1952 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 Radio Craftsman / The Radio Craftsmen 1949 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Ravenswood (div. of Annapolis Electroacoustics Corp.) 1962 1 0 0 0 0 0 0 RCA 1946 1986 0 1 1 0 12 25 3 3 2.687847 2.667228 3.12676 .125 2.266667 2.391667 .8333333 2.242424 1.212121 Regal Electronics 1948 1956 1 1 0 1 0 2 -1.390384 0 0 0 0 0 0 Rembrandt Television 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Remington Radio 1947 1951 1 0 0 0 0 0 0 0 0 0 0 Richmart Corp. 1951 1952 1 0 0 0 0 0 0 0 0 0 Rod Radio Manufacturing Co. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Roesch (Douglas J.) 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Rokville 23:Rokaville 1955 1 0 0 0 0 0 0 0 0 0 Royal Radio & Television Corp. 7:Royal Television & Radio Corp. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Sampo Corp. of America 1981 1 0 0 0 0 Samsung America Inc. 1989 0 0 0 0 0 Sanabria Television Corp. 34:American Television 1960 1 0 0 0 0 -.8266786 0 0 Sanyo Manufacturing Corp. 1977 0 0 0 0 0 0 Scott Radio Laboratories 1947 1957 1 1 1 0 0 13 -1.390384 0 0 0 0 0 0 Semco Engineering and Manufacturing 19:Semco Electronics 1952 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 Sentinel Radio 1948 1957 0 1 1 0 12 5 -1.390384 0 0 0 0 0 0 Setchell Carlson 1950 1970 1 1 1 0 10 8 0 1 -1.390384 -.8266786 0 0 0 0 0 0 Sharp Electronics 1983 0 0 0 0 0 Shaw Television 1950 1955 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Shevers, Harold 18:Gotham Television Corp. 1948 1958 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Sightmaster Corp. 1948 1951 1 0 0 0 0 0 0 0 0 0 0 Singer Television 25:Singer (Eugene) Electronics Company 34:Closed-Circuit Corp. 1953 1 0 0 0 0 -.8266786 0 0 0 0 0 SMA 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Snaider Television & Television Assembly Co. 1948 1954 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Sonora Corp. of America 1962 1 0 0 0 0 0 0 Sonora Radio and Television 27:Sonora Electronics 1947 1960 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Sony Corp. of America 1975 0 0 0 0 0 .2 Sovereign Television 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Sparks-Withington 7:Sparton Radio-Television (Div. of Sparks-Withington) 1948 1956 0 1 0 0 12 21 -1.390384 0 0 0 0 0 0 Speedway Products Inc. 1949 1950 1 0 0 0 0 0 0 0 0 0 0 Starrett Television 1948 1955 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Stewart-Warner 1947 1955 1 1 1 0 12 22 -1.390384 0 0 0 0 0 0 Stolle Engineering and Manufacturing 1949 1951 1 0 0 0 0 0 0 0 0 0 0 Stromberg-Carlson 1947 1957 1 1 1 0 12 25 -1.390384 0 0 0 0 0 0 Symphonic Electronic Corp. 1960 1 0 0 0 0 -.8266786 0 0 Symphonic Radio and Electronics 1952 1 1 0 1 8 0 -1.390384 0 0 0 0 0 Symphony Radio and TV 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Tatung Company of America 1979 0 0 0 0 0 0 Tech-Master Products Company 21:Tech-Master Corp. 1948 1968 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Tele King 1948 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Tele-Tone Radio 1948 1954 1 1 1 0 9 2 -1.390384 0 .1666667 .1666667 0 .1666667 .1666667 Tele-Video Corp. 11: Reevesoundcraft 1949 1952 1 0 0 0 0 0 0 0 0 0 0 Telequip Radio 1949 1968 1 1 1 0 0 1 -1.390384 -.8266786 0 0 0 0 0 0 Teletronics 1970 1 0 0 0 0 -.7765288 0 Television Inc. 1950 1952 1 0 0 0 0 0 0 0 0 0 0 Televista Corp. of America 1948 1951 1 0 0 0 0 0 0 0 0 0 0 Telindustries 10:Kaye-Halbert Corp. 1949 1956 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Templetone Radio 1948 1951 1 1 1 0 12 4 0 0 0 0 0 0 Thompson 57: Thomson Consumer Electronics Inc. (a subsidiary of Thomson Inc., Fra 1987 0 0 0 0 0 Toshiba America 1978 0 0 0 0 0 0 Trad Television 21:Trad Electronics 1949 1958 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Trans-Vue 1949 1951 1 0 0 0 0 0 0 0 0 0 0 Transvision 1948 1967 1 0 0 0 0 -1.390384 -.8266786 0 0 0 0 0 0 Trav-Ler Radio 34:Trav-Ler Industries 1948 1965 0 1 1 0 11 17 -1.390384 -.8266786 0 0 0 0 0 0 United States Television Manufacturing Corp. 1947 1952 1 1 1 0 9 5 0 0 0 0 0 0 Vidaire 1952 1 0 0 0 0 -1.390384 0 0 0 0 0 Vidcraft Television 1948 1952 1 0 0 0 0 0 0 0 0 0 0 Video Products Corp. 15: Sheraton Television 17: Video Products Corp. 1949 1955 1 0 0 0 0 -1.390384 0 0 0 0 0 0 Videodyne 1948 1950 1 0 0 0 0 0 0 0 0 0 0 Walsco Electronics 1955 1 0 0 0 0 0 0 0 0 0 Warwick Manufacturing 35:Warwick Electronics 1951 1977 0 1 0 1 0 3 1 0 -1.390384 -.8266786 -.7765288 0 0 0 0 0 Watterson Radio 1948 1949 1 0 0 0 0 0 0 0 0 0 0 Wells-Gardner 1948 1990 0 1 0 1 12 20 1 1 -1.390384 -.8266786 -.7765288 0 0 0 0 0 0 Westinghouse 1947 1969 1 1 0 0 12 25 3 1 .6931472 1.131402 0 2.433333 2.433333 0 2.484848 1.301587 Zenith Radio 1948 1990 0 1 1 0 12 22 3 3 1.824549 2.791165 3.025291 .125 .4 .525 1.333333 .3636364 .2727273