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[NB251081], Technical Note, Leroy E Briggs, August 15th, 1914

Title: [NB251081], Technical Note, Leroy E Briggs, August 15th, 1914
Author: Briggs, Leroy E
Date: 1914-08-15
Type: Technical Note
Subject: Miner's safety lamp
Folder ID: NB251-F
Microfilm ID: 241:130
Document ID: NB251081
URL: https://edisondigital.rutgers.edu/document/NB251081
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 241