Ajit Pai @AjitPai
RT @AjitPai: On this date in 1931, the @uspto granted Patent 1,835,031 for a "concentric conducting system”--what we know today as coaxial… — PolitiTweet.org
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Wed Dec 08 15:04:34 +0000 2021
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Ajit Pai @AjitPai
RT @AjitPai: On this date in 1931, the @uspto granted Patent 1,835,031 for a "concentric conducting system”--what we know today as coaxial… — PolitiTweet.org