Perfectionnements aux masques de soudure,申请号FRD788381-传众专利搜索

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发明名称	Perfectionnements aux masques de soudure
摘要
申请公布号	FR788381(A)	申请公布日期	1935.10.09
申请号	FRD788381	申请日期	1934.07.10
申请人	SOCIETE FRANCAISE DE L'ACETYLENE	发明人
分类号	A61F9/06	主分类号	A61F9/06
代理机构		代理人
主权项
地址

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