Joint de tuyaux à manchon ou emboîtement avec soudure,申请号FRD693489-传众专利搜索

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发明名称	Joint de tuyaux à manchon ou emboîtement avec soudure
摘要
申请公布号	FR693489(A)	申请公布日期	1930.11.20
申请号	FRD693489	申请日期	1930.04.07
申请人		发明人	BETZ WILHELM
分类号	F16L13/02	主分类号	F16L13/02
代理机构		代理人
主权项
地址

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