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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
Cotton-Chopper.
Patent for a cotton chopper with rotating blades.
Date:
July 4, 1911
Creator:
Prokschl, Mathias
System:
The Portal to Texas History