U.S. patent number D312,459 [Application Number 07/347,277] was granted by the patent office on 1990-11-27 for telephone set. This patent grant is currently assigned to Iwatsu Electric Company, Ltd.. Invention is credited to Takashi Oshima, Kenzi Tamogami.
United States Patent | D312,459 |
Oshima , et al. | November 27, 1990 |
Inventors: | Oshima; Takashi (Tokyo, JP), Tamogami; Kenzi (Mitaka, JP) |
---|---|
Assignee: | Iwatsu Electric Company, Ltd.
(Tokyo, JP) |
Appl. No.: | 07/347,277 |
Filed: | May 2, 1989 |
Current U.S. Class: | D14/151 |
Field of Search: | ;D14/151,241 ;379/354,440,436,441,419,420,428,432 |
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NEC 4 page flyer dated 5/85, Telephone Unit at bottom of p. 1. . Telephony, Mar. 16, 1987 at p. 41: Escom Business Phone, 1200 number directory. . GTE Telcomm. Journal, 41, at p. 18; GTE Digital Telephone: Keyphone 1000.. |
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