Method of making brake drums,申请号US19310544350-传众专利搜索

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发明名称	Method of making brake drums
摘要
申请公布号	US2035142(A)	申请公布日期	1936.03.24
申请号	US19310544350	申请日期	1931.06.15
申请人	CAMPBELL, WYANT & CANNON FOUNDRY COMPANY	发明人	CAMPBELL DONALD J.
分类号	B21D53/34	主分类号	B21D53/34
代理机构		代理人
主权项
地址

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