Process and apparatus for grinding piston rings,申请号US19510224368-传众专利搜索

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法人/股东/高管

发明名称	Process and apparatus for grinding piston rings
摘要
申请公布号	US2654977(A)	申请公布日期	1953.10.13
申请号	US19510224368	申请日期	1951.05.03
申请人	GENERAL MOTORS CORPORATION	发明人	SQUIBB GEORGE R.;URQUHART DONALD ALLEN
分类号	B24B19/11	主分类号	B24B19/11
代理机构		代理人
主权项
地址

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