Multiple rolling machine,申请号US19390279948-传众专利搜索

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发明名称	Multiple rolling machine
摘要
申请公布号	US2275629(A)	申请公布日期	1942.03.10
申请号	US19390279948	申请日期	1939.06.19
申请人	INGELS JAMES J	发明人	INGELS JAMES J.
分类号	B21D21/00	主分类号	B21D21/00
代理机构		代理人
主权项
地址

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