U.S. patent number D655,364 [Application Number D/388,333] was granted by the patent office on 2012-03-06 for buoyant assistive device. Invention is credited to Robert Johnston.
United States Patent | D655,364 |
Johnston | March 6, 2012 |
Inventors: | Johnston; Robert (Milwaukee, WI) |
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Appl. No.: | D/388,333 |
Filed: | March 28, 2011 |
Current U.S. Class: | D21/805 |
Current International Class: | 2902 |
Field of Search: | ;D21/769-770,801,803,809 ;114/253,345-346 ;441/35,40-42,65-67,74,129-132 ;472/128-129 ;D12/5,6,316 ;D6/392,596,601,604 |
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