Patent for the Telegraphone - issued to Charles K. Fankhauser in 1917. 14 printed pages on heavy stock paper used in the United States Patent and Trademark Office Examining Room for reference prior to conversion to microfilm. This was tossed years ago when the United States Patent and Trademark Office decided it no longer needed the paper for the examiners after their high tech conversion to microfilm. This original historic document naturally shows signs of use and is stamped in the right hand orner "Examiner".
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