Process of making tungsten alloys,申请号US19290383570-传众专利搜索

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发明名称	Process of making tungsten alloys
摘要
申请公布号	US1896643(A)	申请公布日期	1933.02.07
申请号	US19290383570	申请日期	1929.08.05
申请人	PETERSSON ALLOYS LIMITED	发明人	PETERSSON HARRY
分类号	C22C1/10	主分类号	C22C1/10
代理机构		代理人
主权项
地址

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