U.S. patent number D334,161 [Application Number 07/669,306] was granted by the patent office on 1993-03-23 for double blade windshield wiper. Invention is credited to Chang Shu-Yun, Shu-Chen Wu.
United States Patent | D334,161 |
Wu , et al. | March 23, 1993 |
Inventors: | Wu; Shu-Chen (Chu Hsiang Vill, Lu Ku Hsiang, Nantou Hsien, TW), Shu-Yun; Chang (Long Tuan Vill, Ba Lii Hsiang, Taipei Hsien, TW) |
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Appl. No.: | 07/669,306 |
Filed: | March 13, 1991 |
Current U.S. Class: | D12/219 |
Field of Search: | ;D12/155 ;15/250.35,250.36,250.41,250.42 |
D267940 | February 1983 | Duvoux |
D296317 | June 1988 | Mower et al. |
D310193 | August 1990 | Charet |
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