U.S. patent number D310,524 [Application Number 07/378,610] was granted by the patent office on 1990-09-11 for telephone station set. This patent grant is currently assigned to Hitachi, Ltd.. Invention is credited to Nobuo Fukuda, Yasunari Iehara, Yoshihiro Kwakatsu, Toshiyuki Utsuki.
United States Patent | D310,524 |
Utsuki , et al. | September 11, 1990 |
Inventors: | Utsuki; Toshiyuki (Tahikawa, JP), Fukuda; Nobuo (Machida, JP), Kwakatsu; Yoshihiro (Sayama, JP), Iehara; Yasunari (Fujisawa, JP) |
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Assignee: | Hitachi, Ltd. (Tokyo,
JP) |
Appl. No.: | 07/378,610 |
Filed: | July 12, 1989 |
Feb 17, 1989 [JP] | 1-5611 | |||
Current U.S. Class: | D14/151; 379/436 |
Field of Search: | ;D14/151,241,248 ;379/368,396,267,433,434,440,436 |
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GTE Supply Catalog-1988 -89 GSA Schedule: p. 44 Fujitsu GTE "STARLOG" Key Systems. . Teleconnect Guide-"Phone Systems" 1985; p. 12-#35 Toshiba PBX and Telenova 1 PBX .multidot.36.. |
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