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[NS7704ZAU], Technical Note, Charles Batchelor, Thomas Alva Edison, May 14th, 1877

Title: [NS7704ZAU], Technical Note, Charles Batchelor, Thomas Alva Edison, May 14th, 1877
Editor's Notes: sexty, 11pp.: doubled dpdr; fr. 582 "Yes splendid bug cathcer3I think its good; fr. 583 Model for Phelps full circ.; emg; dpdr with emg; relay lever connex
Author: Batchelor, Charles; Edison, Thomas Alva
Mentioned: Phelps, George May
Date: 1877-05-14
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:583
Document ID: NS7704ZAU
URL: https://edisondigital.rutgers.edu/document/NS7704ZAU
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 7

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