Making composite metals,申请号US19360082160-传众专利搜索

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发明名称	Making composite metals
摘要
申请公布号	US2160558(A)	申请公布日期	1939.05.30
申请号	US19360082160	申请日期	1936.05.27
申请人	ORR JR JOHN B	发明人	JR. JOHN B. ORR,
分类号	B23K20/04;C21D1/74	主分类号	B23K20/04
代理机构		代理人
主权项
地址

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