Compressor piston ring,申请号US19450575339-传众专利搜索

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发明名称	Compressor piston ring
摘要
申请公布号	US2447125(A)	申请公布日期	1948.08.17
申请号	US19450575339	申请日期	1945.01.30
申请人	UNITED AIRCRAFT CORPORATION	发明人	KALITINSKY ANDREW
分类号	F02B71/00;F16J9/20	主分类号	F02B71/00
代理机构		代理人
主权项
地址

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