Derrick support for underwater drilling,申请号US19400368757-传众专利搜索

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发明名称	Derrick support for underwater drilling
摘要
申请公布号	US2352370(A)	申请公布日期	1944.06.27
申请号	US19400368757	申请日期	1940.12.06
申请人	CARRUTHERS ROBERT L	发明人	CARRUTHERS ROBERT L.
分类号	E02B17/00	主分类号	E02B17/00
代理机构		代理人
主权项
地址

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