Machine to pierce twenty holes in a wheel hub sheel for long spokes,申请号US19320625993-传众专利搜索

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发明名称	Machine to pierce twenty holes in a wheel hub sheel for long spokes
摘要
申请公布号	US1946992(A)	申请公布日期	1934.02.13
申请号	US19320625993	申请日期	1932.07.29
申请人	GENERAL MOTORS CORPORATION	发明人	TORMYN HERMAN;WIETHOFF FRANK F.
分类号	B21D28/32	主分类号	B21D28/32
代理机构		代理人
主权项
地址

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