Spacer and expander for piston rings,申请号US19530374243-传众专利搜索

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发明名称	Spacer and expander for piston rings
摘要
申请公布号	US2685484(A)	申请公布日期	1954.08.03
申请号	US19530374243	申请日期	1953.08.14
申请人	SEALED POWER CORPORATION	发明人	DAVIS LEWIS M.
分类号	F16J9/06	主分类号	F16J9/06
代理机构		代理人
主权项
地址

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