WELL BLOWOUT PREVENTER CONTROL PRESSURE MODULATOR,申请号GB19710024610-传众专利搜索

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发明名称	WELL BLOWOUT PREVENTER CONTROL PRESSURE MODULATOR
摘要
申请公布号	GB1273946(A)	申请公布日期	1972.05.10
申请号	GB19710024610	申请日期	1971.04.19
申请人	HYDRIL COMPANY	发明人
分类号	E21B33/064;F15B11/02;F16K41/00	主分类号	E21B33/064
代理机构		代理人
主权项
地址

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