Thomas A. Edison Papers Image Edition · Thomas Edison Papers Digital Edition

[NB263183], Technical Note, George Edwin Hart, March 31st, 1921

Title: [NB263183], Technical Note, George Edwin Hart, March 31st, 1921
Author: Hart, George Edwin
Date: 1921-03-31
Type: Technical Note
Subject: Disc record and duplicating technology
Folder ID: NB263-F
Microfilm ID: 241:1004
Document ID: NB263183
URL: https://edisondigital.rutgers.edu/document/NB263183
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 241