Method of reconstructing valve seats,申请号US19310580967-传众专利搜索

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发明名称	Method of reconstructing valve seats
摘要
申请公布号	US2069933(A)	申请公布日期	1937.02.09
申请号	US19310580967	申请日期	1931.12.14
申请人	ALBERTSON & COMPANY, INC.	发明人	ALBERTSON FRANS O.
分类号	B23C3/05	主分类号	B23C3/05
代理机构		代理人
主权项
地址

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