Yukihiro Kiwaki |
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Documents |
| Date | Document Name & Details | Documents |
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| 3 July 2012 | Pneumatic Tire with Tread Having Inside and Outside Circumferential Sipes United States Patent US 8,210,221 B2 Yukihiro Kiwaki and Ryoichi Watabe for Bridgestone Corporation |  PDF - 827KB - 11 pages |