U.S. patent number D308,266 [Application Number 07/080,582] was granted by the patent office on 1990-05-29 for welding helmet. Invention is credited to Dennis A. Van Wyk.
United States Patent | D308,266 |
Van Wyk | May 29, 1990 |
Inventors: | Van Wyk; Dennis A. (Eugene, OR) |
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Appl. No.: | 07/080,582 |
Filed: | August 3, 1987 |
Current U.S. Class: | D29/110 |
Field of Search: | ;D29/7-10,12,15-18 ;2/8-9 ;128/201.22,201.23 |
D240970 | August 1976 | Barta |
D249827 | October 1978 | Rieppel et al. |
D267207 | December 1982 | Hilton |
2056027 | September 1936 | Tracey |
2384765 | September 1945 | O'Reilly |
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