Perfectionnements aux articles bi-métalliques,申请号FRD707332-传众专利搜索

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发明名称	Perfectionnements aux articles bi-métalliques
摘要
申请公布号	FR707332(A)	申请公布日期	1931.07.07
申请号	FRD707332	申请日期	1930.12.10
申请人	COPPERWELD STEEL COMPANY	发明人
分类号	B32B15/01	主分类号	B32B15/01
代理机构		代理人
主权项
地址

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