Well Drilling Apparatus.
Description:
Patent for an improved well-drilling apparatus. Improvements made to bull wheel shaft and the sand reel and casing line shaft so they may be operated independently of each other while utilizing the same source of power.
Date:
January 14, 1919
Creator:
Thorniley, Clarence W. & Thorniley, Charles, D.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department