Original Assignee JERSEY PROD RES CO Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US812308A Inventor Wallace M O'reilly Martin E True Current Assignee (The listed assignees may be inaccurate. Google Patents US2978029A - Plug for well boreholesÄownload PDF Info Publication number US2978029A US2978029A US812308A US81230859A US2978029A US 2978029 A US2978029 A US 2978029A US 812308 A US812308 A US 812308A US 81230859 A US81230859 A US 81230859A US 2978029 A US2978029 A US 2978029A Authority US United States Prior art keywords packer plug cement mandrel housing Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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