Indexing punch presses,申请号US19340746084-传众专利搜索

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发明名称	Indexing punch presses
摘要
申请公布号	US2021077(A)	申请公布日期	1935.11.12
申请号	US19340746084	申请日期	1934.09.29
申请人	GENERAL ELECTRIC COMPANY	发明人	MERRILL WILBUR L.;FISHER FREDERICK E.
分类号	B21D28/22	主分类号	B21D28/22
代理机构		代理人
主权项
地址

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