Method for making pipe couplings,申请号US19300467417-传众专利搜索

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发明名称	Method for making pipe couplings
摘要
申请公布号	US1880115(A)	申请公布日期	1932.09.27
申请号	US19300467417	申请日期	1930.07.12
申请人	UNITED STATES UNION CORPORATION	发明人	SMITH SAMUEL N.;BEMIES JAMES F.
分类号	B21K1/16	主分类号	B21K1/16
代理机构		代理人
主权项
地址

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