U.S. patent number D288,769 [Application Number 06/685,858] was granted by the patent office on 1987-03-17 for impact wrench. This patent grant is currently assigned to Snap-on Tools Corporation. Invention is credited to Donald W. Doman.
United States Patent | D288,769 |
Doman | March 17, 1987 |
Inventors: | Doman; Donald W. (Janesville, WI) |
---|---|
Assignee: | Snap-on Tools Corporation
(Kenosha, WI) |
Appl. No.: | 06/685,858 |
Filed: | December 24, 1984 |
Current U.S. Class: | D8/68 |
Field of Search: | ;D8/21,61,68 ;81/57.11,464,465,466 ;173/163,170 |
D223134 | March 1972 | Buryea |
D256980 | September 1980 | Adams et al. |
D261222 | October 1981 | Buryea |
3696693 | October 1972 | Bosten |
3912022 | October 1975 | Smith |
4064771 | December 1977 | Krieg |
Photographs of predecessor tool of Snap-on Tools Corporation, Model No. AT-325. . Photographs of predecessor tool of Chicago Pneumatic, Model Nos. CP-721, CP-725S, CP-732, CP-734, CP-745 and CP-772.. |
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