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Trap.
Patent for an animal trap, the unique elements of which are found in the "combination and arrangement of parts" (lines 16-17). Improvements include but are not limited to the addition of an open-ended case, a depressed platform and various links.
Date:
October 9, 1917
Creator:
Ward, Robert Gillespie & Clayton, John Taylor
System:
The Portal to Texas History
Control Mechanism for Internal Combustion Engines
Patent for an object that "[provides] economical mixtures when the engine is running under light load without affecting the power of the engine when running under a heavy load."
Date:
October 17, 1916
Creator:
Guthrie, William S.
System:
The Portal to Texas History