U.S. patent number D365,577 [Application Number D/021,753] was granted by the patent office on 1995-12-26 for penetrating shovel tooth. Invention is credited to John A. Ruvang.
United States Patent | D365,577 |
Ruvang | December 26, 1995 |
Inventors: | Ruvang; John A. (Carrollton, TX) |
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Appl. No.: | D/021,753 |
Filed: | April 22, 1994 |
Current U.S. Class: | D15/29 |
Field of Search: | ;D15/10,28,29 ;37/452-454 |
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3085635 | April 1963 | Livermore |
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