US Patent 6904832 Ratchet wrench
Patent 6904832 was granted and assigned to LG on June, 2005 by the United States Patent and Trademark Office.
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Patent abstract
A ratchet wrench includes a wrench body, a ratchet wheel, a pawl member, a control member, a direction control member, and a locking plate. Thus, the pawl member engages the ratchet wheel rigidly and closely, so that the pawl member and the ratchet wheel have the optimum locking state.
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Patent Inventor Names
Yu Tang Chen0
Date of Patent
June 14, 2005
0Patent Application Number
106669830
Date Filed
September 16, 2003
0Patent Primary Examiner
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US Patent 6904832 Ratchet wrench
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