Coated grooves for pipe coupling,申请号US19610131338-传众专利搜索

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发明名称	Coated grooves for pipe coupling
摘要
申请公布号	US3120967(A)	申请公布日期	1964.02.11
申请号	US19610131338	申请日期	1961.08.14
申请人	JOHNS-MANVILLE CORPORATION	发明人	KAZIENKO HENRY J.
分类号	F16L21/03	主分类号	F16L21/03
代理机构		代理人
主权项
地址

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