Die box for wire drawing machines,申请号US19390271541-传众专利搜索

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发明名称	Die box for wire drawing machines
摘要
申请公布号	US2237527(A)	申请公布日期	1941.04.08
申请号	US19390271541	申请日期	1939.05.03
申请人	THE AETNA-STANDARD ENGINEERING COMPANY	发明人	LEWIS KENNETH B.
分类号	B21C3/14	主分类号	B21C3/14
代理机构		代理人
主权项
地址

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