U.S. patent number D363,721 [Application Number D/028,536] was granted by the patent office on 1995-10-31 for combined speaker and microphone peripheral unit. This patent grant is currently assigned to AT&T IPM Corp.. Invention is credited to Michael W. Lum, Jeffrey P. McAteer, Robert B. Wills.
United States Patent | D363,721 |
Lum , et al. | October 31, 1995 |
Inventors: | Lum; Michael W. (Tustin, CA), McAteer; Jeffrey P. (Fishers, IN), Wills; Robert B. (Redondo Beach, CA) |
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Assignee: | AT&T IPM Corp. (Coral
Gables, FL) |
Appl. No.: | D/028,536 |
Filed: | September 19, 1994 |
Current U.S. Class: | D14/226; D14/214 |
Field of Search: | ;D14/127,204-206,209-216,221-222,225-229,299 ;181/158,198,199 ;379/430,431,444 ;381/24,88,90-91,159,168-169 |
D244696 | June 1977 | Ripple |
D248854 | August 1978 | Ripple |
D322608 | January 1993 | Masagaki |
D343676 | January 1994 | Lim |
4580653 | April 1986 | Owens |
5291559 | March 1994 | Freadman |
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