Url https://edisondigital.rutgers.edu/document/NA159 Resource class dctype:Text Title [NA159] Technical Note, c. 1910 Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1910-00-00 Type Technical Note Identifier NA159 Source 168:981 Rights Thomas Edison National Historical Park Has Version https://archive.org/details/edisonmicrofilm168/page/n991/mode/1up Archive.org Viewer, Microfilm Series Reel 168 Is Part Of NA159-F Uri https://edisondigital.rutgers.edu/document/NA159 https://edisondigital.rutgers.edu/document/NA159 --