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[NB233027], Technical Note, William Alphonsus Hayes, April 20th, 1918

Title: [NB233027], Technical Note, William Alphonsus Hayes, April 20th, 1918
Author: Hayes, William Alphonsus
Mentioned: Edison, Thomas Alva
Date: 1918-04-20
Type: Technical Note
Subject: Military; Sound and acoustics
Folder ID: NB233-F
Microfilm ID: 239:955
Document ID: NB233027
URL: https://edisondigital.rutgers.edu/document/NB233027
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 239