Ajit Pai @AjitPai
RT @AjitPai: OTD in 1942, the @uspto granted Chester Carlson a patent for what we now call photocopying. Years later, Carlson's invention o… — PolitiTweet.org
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Thu Oct 06 13:33:32 +0000 2022
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RT @AjitPai: OTD in 1942, the @uspto granted Chester Carlson a patent for what we now call photocopying. Years later, Carlson's invention o… — PolitiTweet.org