Cultivator Foot (open access)

Cultivator Foot

Patent for a cultivator foot. This cultivator foot is designed to be a new kind of inexpensive, simple, and efficient cultivator foot.
Date: August 22, 1922
Creator: Dawson, Joseph E.
System: The Portal to Texas History
Shutter for Motion-Picture Machines. (open access)

Shutter for Motion-Picture Machines.

Patent for a shutter for motion picture cameras to eliminate flickering. Produced by stamping the device from sheet metal.
Date: August 22, 1922
Creator: Patureau, Arthur M.
System: The Portal to Texas History