Charles Adler Jr.
Charles Adler Jr. (June 20, 1899 – October 23, 1980) was an American inventor and engineer. He is most known for developing devices meant to improve transportation safety, including sonically actuated traffic lights, colorblind road signals, pedestrian push-buttons, and flashing aircraft lights.
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Charles Adler Jr.
Charles Adler Jr. (June 20, 1899 – October 23, 1980) was an American inventor and engineer. He is most known for developing devices meant to improve transportation safety, including sonically actuated traffic lights, colorblind road signals, pedestrian push-buttons, and flashing aircraft lights.
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Charles Adler Jr. (June 20, 18 ...... and flashing aircraft lights.
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1899-06-20
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1980-10-23
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alma mater
birth date
1899-06-20
death date
1980-10-23
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Transportation Safety
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Charles Adler Jr.
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Inventor, Engineer
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Charles Adler Jr. (June 20, 18 ...... and flashing aircraft lights.
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Charles Adler Jr.
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Charles Adler Jr.
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