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

[NB263137], Technical Note, George Edwin Hart, February 7th, 1921

Title: [NB263137], Technical Note, George Edwin Hart, February 7th, 1921
Author: Hart, George Edwin
Date: 1921-02-07
Type: Technical Note
Subject: Electric battery; Disc record and duplicating technology
Folder ID: NB263-F
Microfilm ID: 241:981
Document ID: NB263137
URL: https://edisondigital.rutgers.edu/document/NB263137
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