Valve de chambre à air en deux pièces,申请号FRD712846-传众专利搜索

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发明名称	Valve de chambre à air en deux pièces
摘要
申请公布号	FR712846(A)	申请公布日期	1931.10.13
申请号	FRD712846	申请日期	1931.02.24
申请人	EDOUARD DUBIED & CO	发明人
分类号	F16K15/20	主分类号	F16K15/20
代理机构		代理人
主权项
地址

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