Self-adjusting pipe wrench,申请号US19570656453-传众专利搜索

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发明名称	Self-adjusting pipe wrench
摘要
申请公布号	US2887922(A)	申请公布日期	1959.05.26
申请号	US19570656453	申请日期	1957.05.01
申请人	RUFF EVERETT E	发明人	RUFF EVERETT E.
分类号	B25B13/28;B25B13/50	主分类号	B25B13/28
代理机构		代理人
主权项
地址

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