Dispositif de sécurité pour la trempe au chalumeau,申请号FRD972431-传众专利搜索

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发明名称	Dispositif de sécurité pour la trempe au chalumeau
摘要
申请公布号	FR972431(A)	申请公布日期	1951.01.30
申请号	FRD972431	申请日期	1941.03.13
申请人		发明人	FRANCE ETIENNE DE;DUCLERT PIERRE
分类号	C21D1/08	主分类号	C21D1/08
代理机构		代理人
主权项
地址

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