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Combined Level and Try Square
Patent for a combined level and try square tool. Illustrations are included.
Date:
June 18, 1909
Creator:
Blackwell, James H.
System:
The Portal to Texas History
Signaling Device for Automobiles.
Patent for turn signal device for automobiles that "can be easily and quickly attached to the frame of the usual wind shield" (lines 21-22) and allows driver to operate it without letting go of the steering wheel.
Date:
June 25, 1918
Creator:
Niissle, Charles J.
System:
The Portal to Texas History