U.S. patent number D312,627 [Application Number 07/207,433] was granted by the patent office on 1990-12-04 for modem interface unit. Invention is credited to Howard A. Gutzmer.
United States Patent | D312,627 |
Gutzmer | December 4, 1990 |
Inventors: | Gutzmer; Howard A. (Bonita, CA) |
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Appl. No.: | 07/207,433 |
Filed: | June 16, 1988 |
Current U.S. Class: | D14/242; D13/164 |
Field of Search: | ;D14/100-117 ;D13/12,49,41 ;174/50,52.1,65R ;361/331,332,334,380,381,390-394 ;360/97-99 |
D260881 | September 1981 | McKinsey et al. |
D282260 | January 1986 | Carlson et al. |
D285926 | September 1986 | Kies et al. |
D286053 | October 1986 | McDaniel et al. |
D299139 | December 1988 | Toft et al. |
D303252 | September 1989 | Shih |
3728470 | April 1973 | Maier |
Precision Components, Inc.'s advertisement for Data Switch in Teleconnect Magazine, May, 1988. . TVMP, Inc.'s advertisement for Phoneflex in PC Week Magazine, Jun. 1988. . A-JEM's Sheet, Jan., 1988.. |
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