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发明名称	Wrench
摘要
申请公布号	US2138332(A)	申请公布日期	1938.11.29
申请号	US19380194410	申请日期	1938.03.07
申请人	THE BILLINGS AND SPENCER COMPANY	发明人	GEISEL CARL R.
分类号	B25B13/46	主分类号	B25B13/46
代理机构		代理人
主权项
地址

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