Sample-Taking Device
Description:
Patent for a sample taking device "for use in preserving the log of the well in drilling operations in earth, rock or other similar formations." (lines 12-14). Specially adapted for use in drilling wells for oil and sulfur, specifically in the Gulf Coast region.
Date:
December 9, 1919
Creator:
Carmichael, Robert E. & Hamman, George
Item Type:
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Partner:
UNT Libraries Government Documents Department