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Trap-Gun.
Patent for a trap gun, which can be mounted on a post or in the ground.
Date:
August 9, 1910
Creator:
Lindsey, William Milton
System:
The Portal to Texas History
Pump-Valve Mechanism.
Patent for a pump valve mechanism for use in deep wells, which can be easily removed for cleaning and repair,
Date:
August 13, 1907
Creator:
Sheen, Davis
System:
The Portal to Texas History