Apparatus for operating on sheet material,申请号US19390303037-传众专利搜索

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发明名称	Apparatus for operating on sheet material
摘要
申请公布号	US2335334(A)	申请公布日期	1943.11.30
申请号	US19390303037	申请日期	1939.11.06
申请人	YODER CARL M	发明人	YODER CARL M.
分类号	B21D19/00;B23D19/08	主分类号	B21D19/00
代理机构		代理人
主权项
地址

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