US Patent 7290310 Hinge
Patent 7290310 was granted and assigned to Sugatsune on November, 2007 by the United States Patent and Trademark Office.
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A first bush is attached to each of the opposite end parts of a first cylindrical part of a first hinge member. Second bushes are attached respectively to the inner end parts of second cylindrical parts which are disposed at the opposite end parts of a second hinge member and to the opposite end parts of a second cylindrical part which is disposed at the central part of the second hinge member. The first bush is provided with a protection cylindrical part. This protection cylindrical part is fitted to the outer periphery of the first cylindrical part. The second bush is provided with a second protection cylindrical part. This second protection cylindrical part is fitted to the outer periphery of the second cylindrical part.
US Patent 07290310 Hinge US Patent 7290310 Hinge
US Patent 07290310 Hinge
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