phonogfp Posted March 17, 2021 Share Posted March 17, 2021 "On This Day in Phonographic History..." March 17, 1892: Leon F. Douglass filed for a U.S. patent for “Method of and Means for Duplicating or Transferring Phonographic Records.” This involved simply attaching the reproducer of one phonograph to the recorder of another phonograph with a squeezed rubber tube, resulting in a slight vacuum. #antiquephonographsociety #phonograph #gramophone #antique 2 Link to comment Share on other sites More sharing options...
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