Obtaining unaltered core samples,申请号US19580759277-传众专利搜索

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发明名称	Obtaining unaltered core samples
摘要
申请公布号	US3064742(A)	申请公布日期	1962.11.20
申请号	US19580759277	申请日期	1958.09.05
申请人	JERSEY PRODUCTION RESEARCH COMPANY	发明人	BRIDWELL HAROLD C.
分类号	E21B25/08	主分类号	E21B25/08
代理机构		代理人
主权项
地址

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