Method of making hard metal articles,申请号US19370162966-传众专利搜索

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发明名称	Method of making hard metal articles
摘要
申请公布号	US2167544(A)	申请公布日期	1939.07.25
申请号	US19370162966	申请日期	1937.09.09
申请人	METAL CARBIDES CORPORATION	发明人	BATS JEAN HUBERT LOUIS DE;RITZ JOHN A.
分类号	B21B27/00;B22F3/14	主分类号	B21B27/00
代理机构		代理人
主权项
地址

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