U.S. patent number D552,527 [Application Number D/274,604] was granted by the patent office on 2007-10-09 for wheel chock. Invention is credited to Stephen D. Wolfram.
United States Patent | D552,527 |
Wolfram | October 9, 2007 |
Inventors: | Wolfram; Stephen D. (Savannah, MO) |
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Appl. No.: | D/274,604 |
Filed: | May 9, 2007 |
Current U.S. Class: | D12/217 |
Current International Class: | 1206 |
Field of Search: | ;D12/217,400,120,203 ;D34/27,32,38 ;D8/402 ;280/293 ;410/30,49 ;14/69.5 ;211/20 ;188/32,36 ;254/88 ;248/346,352 |
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