Casing-Head
Description:
Patent for a casing head that is specially adapted for "use in connection with well drilling for letting the tubing down into the bore, and in withdrawing the tubing from the bore." (Lines 15-16), including illustrations.
Date:
September 7, 1920
Creator:
McGarry, Henry S. & Carr, John D.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department