SUBSEA WELLHEAD SYSTEM,申请号GB19850011548-传众专利搜索

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发明名称	SUBSEA WELLHEAD SYSTEM
摘要
申请公布号	GB8511548(D0)	申请公布日期	1985.06.12
申请号	GB19850011548	申请日期	1985.05.07
申请人	SMITH INTERNATIONAL INC	发明人
分类号	E21B33/00;E21B33/043;F16J15/12	主分类号	E21B33/00
代理机构		代理人
主权项
地址

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