U.S. patent number D346,641 [Application Number D/000,806] was granted by the patent office on 1994-05-03 for air valve. Invention is credited to Robert S. Scheurer.
United States Patent | D346,641 |
Scheurer | May 3, 1994 |
Inventors: | Scheurer; Robert S. (Wichita Falls, TX) |
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Appl. No.: | D/000,806 |
Filed: | October 26, 1992 |
Current U.S. Class: | D23/233 |
Field of Search: | ;251/289,298,299,15 ;137/223,846 ;D23/233-237,244-249 |
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