Perfectionnements à la métallurgie du chrome,申请号FRD863343-传众专利搜索

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发明名称	Perfectionnements à la métallurgie du chrome
摘要
申请公布号	FR863343(A)	申请公布日期	1941.03.29
申请号	FRD863343	申请日期	1940.02.09
申请人		发明人	UDY MARVIN J.
分类号	C21C7/00	主分类号	C21C7/00
代理机构		代理人
主权项
地址

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