Improvements in or relating to copper alloys,申请号GB19320009446-传众专利搜索

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发明名称	Improvements in or relating to copper alloys
摘要
申请公布号	GB399219(A)	申请公布日期	1933.10.02
申请号	GB19320009446	申请日期	1932.04.01
申请人	NARAINA DAS CHOPRA	发明人
分类号	C22C9/04	主分类号	C22C9/04
代理机构		代理人
主权项
地址

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