Piston packing ring,申请号US19510210535-传众专利搜索

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发明名称	Piston packing ring
摘要
申请公布号	US2656228(A)	申请公布日期	1953.10.20
申请号	US19510210535	申请日期	1951.02.12
申请人	RAMSEY CORPORATION	发明人	MARIEN MELVIN W.
分类号	F16J9/06;F16J9/20	主分类号	F16J9/06
代理机构		代理人
主权项
地址

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