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[NV12030] Technical Note, July 20th, 1877

Title: [NV12030] Technical Note, July 20th, 1877
Editor's Notes: Application of the Hish [hiss] tube to Bells telephone [use as ill to fr. 15]; followed by a drawing of the tube
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1877-07-20
Type: Technical Note
Subject: Telephone
Folder ID: NV12-F
Microfilm ID: 4:18
Document ID: NV12030
URL: https://edisondigital.rutgers.edu/document/NV12030
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 4