Purgeur d'eau automatique pour conduites de gaz,申请号FRD697551-传众专利搜索

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发明名称	Purgeur d'eau automatique pour conduites de gaz
摘要
申请公布号	FR697551(A)	申请公布日期	1931.01.20
申请号	FRD697551	申请日期	1930.06.17
申请人		发明人	RAYBAUD LAURENT
分类号	F17D3/14	主分类号	F17D3/14
代理机构		代理人
主权项
地址

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