phonogfp Posted October 25, 2021 Share Posted October 25, 2021 "On This Day in Phonographic History..." December 24, 1902: Eldridge Johnson and William Moore filed for a U.S. patent on the tubular tone arm that had begun appearing on Victor Talking Machines in October 1902. This was the “Rigid Arm,” which removed the weight of the horn and earlier traveling arm from the record. October 25, 1904: Eldridge Johnson and William Moore were granted U.S. patent (No.773,290). #antiquephonographsociety #phonograph #gramophone #antique 3 Link to comment Share on other sites More sharing options...
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