Url https://edisondigital.rutgers.edu/document/NA365016 Resource class dctype:Text Title [NA365016] Technical Note, March 1918 Creator Edison, Thomas Alva Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1918-03-00 Type Technical Note Identifier NA365016 Source 237:637 Rights Thomas Edison National Historical Park Has Version https://archive.org/details/edisonmicrofilm237/page/n650/mode/1up Archive.org Viewer, Microfilm Series Reel 237 Is Part Of NA365-F Recipient Hayes, William Alphonsus Uri https://edisondigital.rutgers.edu/document/NA365016 https://edisondigital.rutgers.edu/document/NA365016 --