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3 Matching Results
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Leveling Instrument
Patent for leveling instrument. Illustration included.
Date:
July 26, 1904
Creator:
Akins, Henry King
System:
The Portal to Texas History
Plow
Patent for a plow. Illustration included.
Date:
July 5, 1904
Creator:
Scoggin, James Lee & Dean, John Rowe
System:
The Portal to Texas History
Railway Appliance.
Patent for a railway appliance designed to prevent cars from leaving the track, as well as apply brakes to train to quickly decelerate or stop.
Date:
July 21, 1903
Creator:
Sweat, Omega
System:
The Portal to Texas History