Collection
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Oil-Well Drill
Patent for an Oil-Well Drill with the "...object of the invention being to provide means to prevent the drill from becoming unscrewed from the drill rod and dropping into the bottom of the well" (lines 12-16).
Date:
December 29, 1916
Creator:
Parker, Roy B. & Spurlock, Robert C.
System:
The Portal to Texas History
Pistol- Holster
Patent for a pistol holder. The holder will secure the pistol in the position that it should be in, at all times.
Date:
January 4, 1916
Creator:
Parrish, Byron B.
System:
The Portal to Texas History