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[NV12134], Technical Note, James Adams, Thomas Alva Edison, August 30th, 1877

Title: [NV12134], Technical Note, James Adams, Thomas Alva Edison, August 30th, 1877
Editor's Notes: Improvement in Bell telephone using diaphragm polarized by other end of permanent magnet [see fr. 43]
Author: Adams, James; Edison, Thomas Alva
Date: 1877-08-30
Type: Technical Note
Subject: Telephone
Folder ID: NV12-F
Microfilm ID: 4:64
Document ID: NV12134
URL: https://edisondigital.rutgers.edu/document/NV12134
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 4