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Combined Level and Try Square

Description: Patent for a combined level and try square tool. Illustrations are included.
Date: June 18, 1909
Creator: Blackwell, James H.

Signaling Device for Automobiles.

Description: 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.
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