Matériau opaque aux rayons chi,申请号FRD731337-传众专利搜索

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发明名称	Matériau opaque aux rayons chi
摘要
申请公布号	FR731337(A)	申请公布日期	1932.09.01
申请号	FRD731337	申请日期	1932.02.12
申请人	SOCIETE MINIERE ET INDUSTRIELLE FRANCO-BRESILIENNE	发明人
分类号	G21F1/02	主分类号	G21F1/02
代理机构		代理人
主权项
地址

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