Apparatus for heat shaping piston rings,申请号US19490128870-传众专利搜索

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发明名称	Apparatus for heat shaping piston rings
摘要
申请公布号	US2577113(A)	申请公布日期	1951.12.04
申请号	US19490128870	申请日期	1949.11.22
申请人	RAMSEY CORPORATION	发明人	DUNSFORD MORTIMER C.
分类号	C21D9/40	主分类号	C21D9/40
代理机构		代理人
主权项
地址

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