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[NV12104], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, August 12th, 1877

Title: [NV12104], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, August 12th, 1877
Editor's Notes: Alternative means of achieving variable resistance; also alternative speaker design -- combine with 11:421
Author: Batchelor, Charles; Adams, James; Edison, Thomas Alva
Date: 1877-08-12
Type: Technical Note
Subject: Telephone
Folder ID: NV12-F
Microfilm ID: 4:45
Document ID: NV12104
URL: https://edisondigital.rutgers.edu/document/NV12104
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