Method of treating piston rings,申请号US19360060411-传众专利搜索

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发明名称	Method of treating piston rings
摘要
申请公布号	US2125606(A)	申请公布日期	1938.08.02
申请号	US19360060411	申请日期	1936.01.23
申请人	DEEB GEORGE J	发明人	DEEB GEORGE J.
分类号	C21D9/40;C23C8/04;C23C8/26	主分类号	C21D9/40
代理机构		代理人
主权项
地址

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