Marine conductor pipe assembly,申请号US19620223396-传众专利搜索

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发明名称	Marine conductor pipe assembly
摘要
申请公布号	US3221817(A)	申请公布日期	1965.12.07
申请号	US19620223396	申请日期	1962.09.13
申请人	SHELL OIL COMPANY	发明人	VRIES DOUWE DE;JR. FRANK POORMAN,
分类号	E21B7/128;E21B17/01	主分类号	E21B7/128
代理机构		代理人
主权项
地址

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