Turn, Turn, Turn: A History of Turn Signals
Ridiculous History
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The History of Turn Signals
The pro techs safety signal company introduced flashing turn signals in 1920. Turn signals were not offered to consumers until 1939. They became more and more widespread as the years wound on like through the 1940s. The Smithsonian has a handmade one of a kind signal that Oscar J. similar created in 1929.
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