Relais de sécurité pour canalisation de gaz,申请号FRD954461-传众专利搜索

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发明名称	Relais de sécurité pour canalisation de gaz
摘要
申请公布号	FR954461(A)	申请公布日期	1949.12.23
申请号	FRD954461	申请日期	1947.10.20
申请人		发明人	SAINTE-FARE GASTON DE
分类号	E01F13/02	主分类号	E01F13/02
代理机构		代理人
主权项
地址

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