U.S. patent number D280,506 [Application Number 06/490,913] was granted by the patent office on 1985-09-10 for modular telephone dialer unit. This patent grant is currently assigned to GTE Business Communication Systems Inc.. Invention is credited to Michael Mitchell.
United States Patent | D280,506 |
Mitchell | September 10, 1985 |
Inventors: | Mitchell; Michael (Huntsville, AL) |
---|---|
Assignee: | GTE Business Communication Systems
Inc. (Northlake, IL) |
Appl. No.: | 06/490,913 |
Filed: | May 2, 1983 |
Current U.S. Class: | D14/245 |
Field of Search: | ;D14/59,60,62,53,52,4,114,92,94,30,32,37,38 ;179/179,178,1R,1C,1L,101,102,103,9AD,9A |
D250891 | January 1979 | Renard |
D254493 | March 1980 | Grusso et al. |
D258062 | January 1981 | Cusimano et al. |
D259722 | June 1981 | Fuller et al. |
D263590 | March 1982 | Fukushima et al. |
D265735 | August 1982 | Fukushima et al. |
D266087 | September 1982 | Nakamura et al. |
D270637 | September 1983 | Fukushima et al. |
D275753 | October 1984 | Mohan |
4488009 | December 1984 | Sherman |
Telephony Mag., 10-12-1981, Northern Telecom Ad on p. 59, lowerset shown, right-end of illustration.. |
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