U.S. Commerce Dept. @CommerceGov
RT @uspto: #DYK Robert H. Duell and Charles H. Duell are the only father & son to have both served as Commissioner of Patents: https://t.co… — PolitiTweet.org
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Fri May 05 13:45:25 +0000 2017
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U.S. Commerce Dept. @CommerceGov
RT @uspto: #DYK Robert H. Duell and Charles H. Duell are the only father & son to have both served as Commissioner of Patents: https://t.co… — PolitiTweet.org