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[NE1691051], Technical Note, Charles Batchelor, December 6th, 1875

Title: [NE1691051], Technical Note, Charles Batchelor, December 6th, 1875
Author: Batchelor, Charles
Date: 1875-12-06
Type: Technical Note
Subject: Acoustic telegraphy
Folder ID: NE1691-F
Microfilm ID: 3:218
Document ID: NE1691051
URL: https://edisondigital.rutgers.edu/document/NE1691051
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 3