CYLINDER AND PISTON APPARATUS,申请号GB19740033929-传众专利搜索

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发明名称	CYLINDER AND PISTON APPARATUS
摘要
申请公布号	GB1469669(A)	申请公布日期	1977.04.06
申请号	GB19740033929	申请日期	1974.08.01
申请人	VETCO OFFSHORE IND INC	发明人
分类号	E21B19/09;(IPC1-7):E21B15/02	主分类号	E21B19/09
代理机构		代理人
主权项
地址

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