O-ring seal for rotary hydraulic cylinder,申请号US19550553863-传众专利搜索

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发明名称	O-ring seal for rotary hydraulic cylinder
摘要
申请公布号	US2849244(A)	申请公布日期	1958.08.26
申请号	US19550553863	申请日期	1955.12.19
申请人	THE S-P MANUFACTURING CORPORATION	发明人	SAMPSON MERRITT B.
分类号	B23B31/30;F16J15/32	主分类号	B23B31/30
代理机构		代理人
主权项
地址

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