Apparatus for roll forming strip material,申请号US19380228142-传众专利搜索

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发明名称	Apparatus for roll forming strip material
摘要
申请公布号	US2245407(A)	申请公布日期	1941.06.10
申请号	US19380228142	申请日期	1938.09.02
申请人	GENERAL MOTORS CORPORATION	发明人	LIGNIAN JEAN A.
分类号	B21D7/08	主分类号	B21D7/08
代理机构		代理人
主权项
地址

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