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3 Matching Results
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Cotton-Chopper.
Patent for a cotton chopper with rotating blades.
Date:
July 4, 1911
Creator:
Prokschl, Mathias
System:
The Portal to Texas History
Improvements in Steam Engine
Patent for improvements in steam-engines. The goal of this invention to provide a simple construction that can be equally adapted for locomotives and high speed engines.
Date:
August 4, 1903
Creator:
Dickson, Henry L.
System:
The Portal to Texas History
Motion-Picture-Film Cleaner.
Patent for improvement in motion picture film cleaners which quickly and efficiently removes oil, dirt and grease from film that has been caused by the machines; includes illustrations.
Date:
September 4, 1917
Creator:
Noble, Marcos Eugene
System:
The Portal to Texas History