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[N119041], Technical Note, Francis Jehl, Francis Robbins Upton, September 30th, 1880

Title: [N119041], Technical Note, Francis Jehl, Francis Robbins Upton, September 30th, 1880
Editor's Notes: Conitinuing factory lamp tests. Lamps tested twice, with different EMF & resis (probably before and after full evacuation?). More of same, with occasional notes about blue light, bad spots, etc.
Author: Jehl, Francis; Upton, Francis Robbins
Mentioned: Edison, Thomas Alva
Date: 1880-09-30
Type: Technical Note
Subject: Electric light and power
Folder ID: N119-F
Microfilm ID: 37:466
Document ID: N119041
URL: https://edisondigital.rutgers.edu/document/N119041
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 37
License: CC0 1.0 Universal

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