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Film Feeding Mechanism for Cameras
Patent for a film feeding mechanism for cameras. Illustrations included.
Date:
August 6, 1912
Creator:
Caldwell, Elmer A.
System:
The Portal to Texas History
Rail-Joint
Patent for a joint designed to stop the ends of rails from moving.
Date:
October 6, 1914
Creator:
Fedrick, Samuel B.
System:
The Portal to Texas History