U.S. patent number D653,299 [Application Number D/375,103] was granted by the patent office on 2012-01-31 for hexagonal trampoline. Invention is credited to Chen Samuel.
United States Patent | D653,299 |
Samuel | January 31, 2012 |
Inventors: | Samuel; Chen (Shanghai, CN) |
---|---|
Appl. No.: | D/375,103 |
Filed: | September 17, 2010 |
Current U.S. Class: | D21/797 |
Current International Class: | 2102 |
Field of Search: | ;D21/662,672,797,814 ;482/27,28,29 ;160/135 |
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