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Automatic Trailing Device
Patent for an automatic trailing device. This device is made to "successfully follow the tracks of the front vehicle without the use of a driver on the vehicle in tow" (lines 14-17).
Date:
February 24, 1920
Creator:
Sloan, Charles Lee
System:
The Portal to Texas History
Cotton-Boll-Cleaning Machine.
Patent for a more practical and compact cotton boll cleaning or ginning machine.
Date:
September 7, 1920
Creator:
Lokey, Allen T.
System:
The Portal to Texas History