Side wall fluid sampler,申请号US19560578458-传众专利搜索

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发明名称	Side wall fluid sampler
摘要
申请公布号	US2904113(A)	申请公布日期	1959.09.15
申请号	US19560578458	申请日期	1956.04.16
申请人	WELEX, INC.	发明人	MCMAHAN DURWARD B.
分类号	E21B49/10	主分类号	E21B49/10
代理机构		代理人
主权项
地址

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