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Who invented the stamp?
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Asked 10/7/2012 10:44:00 AM
Updated 11/30/2014 7:59:36 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by sujaysen [11/30/2014 7:58:31 AM], Edited by sujaysen [11/30/2014 7:59:36 AM]
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User: Who invented the stamp?

Weegy: The first four-way, three-color traffic light was created by police officer William Potts in Detroit, Michigan in 1920. In 1923, Garrett Morgan patented his own version. [ The Morgan traffic signal was a T-shaped pole unit that featured three hand-cranked positions: Stop, go, and an all -directional stop position. This third position halted traffic in all directions to give drivers more time to stop before opposing traffic started. ]
chinggay_0118|Points 326|

Question
Asked 10/7/2012 10:44:00 AM
Updated 11/30/2014 7:59:36 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by sujaysen [11/30/2014 7:58:31 AM], Edited by sujaysen [11/30/2014 7:59:36 AM]
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The first postage stamp was introduced in the United Kingdom in 1840 by Rowland Hill as a result of post office reforms of 1837.




Added 11/30/2014 7:42:03 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [11/30/2014 7:59:26 AM]
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