Process of making hard cemented carbide materials,申请号US19320644490-传众专利搜索

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发明名称	Process of making hard cemented carbide materials
摘要
申请公布号	US1998609(A)	申请公布日期	1935.04.23
申请号	US19320644490	申请日期	1932.11.26
申请人	FIRTH-STERLING STEEL COMPANY	发明人	COMSTOCK GREGORY J.
分类号	C22C1/05	主分类号	C22C1/05
代理机构		代理人
主权项
地址

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