Method of obtaining samples from drilled wells,申请号US19280250568-传众专利搜索

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发明名称	Method of obtaining samples from drilled wells
摘要
申请公布号	US1896492(A)	申请公布日期	1933.02.07
申请号	US19280250568	申请日期	1928.01.30
申请人	MACREADY GEORGE A	发明人	MACREADY GEORGE A.
分类号	E21B49/08	主分类号	E21B49/08
代理机构		代理人
主权项
地址

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