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[X098HAB], Technical Note, William Joseph Hammer, May 8th, 1880

Title: [X098HAB], Technical Note, William Joseph Hammer, May 8th, 1880
Author: Hammer, William Joseph
Date: 1880-05-08
Type: Technical Note
Subject: Testing and quality control; Telegraph; Telephone
Folder ID: X098HA-F
Document ID: X098HAB
URL: https://edisondigital.rutgers.edu/document/X098HAB
Rights: NMAH Archives Center
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University