Phonograph Determining Device, December 03, 1912

Title: Phonograph Determining Device, December 03, 1912
Author: Thomas A. Edison
Date Executed: 1910-05-31
Date Filed: 1910-06-02
Date Issued: 1912-12-03
Type: Patent Issued
Subject: Phonographs and Sound Recording
Document ID: PAT1046414
Has Format: https://iiif.archive.org/iiif/edisonpatent1046414/manifest.json
Rights: Edison's patents are in the public domain and have been made available through the generosity of David Kovanen.
Publisher: The Thomas A. Edison Papers