US006227991B1United States Patent (10) Patent N0.: (45) Date of Patent: - Shuttlecock - Document - PDFSEARCH.IO

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	US006227991B1United States Patent (10) Patent N0.: (45) Date of Patent: Add to Reading List Document Date: 2014-08-30 12:32:03 Open Document File Size: 527,72 KB Share Result on Facebook

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US006227991B1United States Patent (10) Patent N0.: (45) Date of Patent:Add to Reading List