Machine for forming sheet metal elbows,申请号US19390282795-传众专利搜索

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发明名称	Machine for forming sheet metal elbows
摘要
申请公布号	US2219993(A)	申请公布日期	1940.10.29
申请号	US19390282795	申请日期	1939.07.04
申请人	HOLUB CHARLES J	发明人	HOLUB CHARLES J.
分类号	B21D9/14	主分类号	B21D9/14
代理机构		代理人
主权项
地址

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