2 Matching Results

Search Results

Gate

Description: Patent for a gate. Illustration included.
Date: October 16, 1906
Creator: Coursey, Thomas Maxton
Partner: UNT Libraries Government Documents Department

Hoisting Mechanism

Description: Patent for hoisting mechanism for use in oil-wells. This invention employees a sand-reel placed upon the hoisting shaft. Illustration included.
Date: October 16, 1906
Creator: Johnston, Horace G.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen