Chain pipe tongs,申请号US19290353916-传众专利搜索

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发明名称	Chain pipe tongs
摘要
申请公布号	US1789553(A)	申请公布日期	1931.01.20
申请号	US19290353916	申请日期	1929.04.10
申请人	J. H. WILLIAMS & CO.	发明人	KRESS WILLARD C.
分类号	B25B13/52	主分类号	B25B13/52
代理机构		代理人
主权项
地址

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