Method of and mold for casting piston rings,申请号US19260155845-传众专利搜索

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发明名称	Method of and mold for casting piston rings
摘要
申请公布号	US1781098(A)	申请公布日期	1930.11.11
申请号	US19260155845	申请日期	1926.12.20
申请人	BRODERICK ERNEST N;LUCIER THEOPHEILES D	发明人	BRODERICK ERNEST N.;LUCIER THEOPHEILES D.
分类号	B22D13/04	主分类号	B22D13/04
代理机构		代理人
主权项
地址

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