U.S. patent number D305,759 [Application Number 07/240,103] was granted by the patent office on 1990-01-30 for cordless headset telephone. Invention is credited to Jesus B. Balbuena.
United States Patent | D305,759 |
Balbuena | January 30, 1990 |
Inventors: | Balbuena; Jesus B. (San Diego, CA) |
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Appl. No.: | 07/240,103 |
Filed: | September 2, 1988 |
Current U.S. Class: | D14/147; D14/144; D14/150; D14/223 |
Field of Search: | ;D14/147,140,200,148,205,251,206 ;379/430,368 ;D21/111 |
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