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[MBN002034A], Technical Note, Charles Batchelor, Thomas Alva Edison, April 16th, 1877

Title: [MBN002034A], Technical Note, Charles Batchelor, Thomas Alva Edison, April 16th, 1877
Editor's Notes: Pressure relay (see following page re chemicals under pressure)
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1877-04-16
Type: Technical Note
Subject: Automatic telegraphy; Miscellaneous electrical technologies
Folder ID: MBN002-F
Microfilm ID: 90:674
Document ID: MBN002034A
URL: https://edisondigital.rutgers.edu/document/MBN002034A
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 90
License: CC0 1.0 Universal