Piston and method of making,申请号US19350020228-传众专利搜索

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发明名称	Piston and method of making
摘要
申请公布号	US2124360(A)	申请公布日期	1938.07.19
申请号	US19350020228	申请日期	1935.05.07
申请人	ALUMINUM COMPANY OF AMERICA	发明人	WELTY GEORGE DONALD
分类号	B23P15/10	主分类号	B23P15/10
代理机构		代理人
主权项
地址

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