U.S. patent number D329,635 [Application Number 07/581,642] was granted by the patent office on 1992-09-22 for double-pole, wall mounted voltage regulator. Invention is credited to Powell Tsai.
United States Patent | D329,635 |
Tsai | September 22, 1992 |
Inventors: | Tsai; Powell (Tai Chung City, TW) |
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Appl. No.: | 07/581,642 |
Filed: | September 11, 1990 |
Current U.S. Class: | D13/110; D13/170 |
Field of Search: | ;D13/124,158,162,165,170 ;D14/217 ;D8/353 ;307/125,130 ;200/16R,252,293,547 ;174/50.51,53,66,67 ;361/380 ;338/68,73,117,197,198,199,200 ;439/651 |
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Decora dimmer switch on p. C27 of Leviton Consumer Products Catalog.. |
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