Url https://edisondigital.rutgers.edu/document/NB171ABK Resource class dctype:Text Title [NB171ABK] Technical Note, c. 1910 Creator Holland, Walter Elam Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1910-00-00 Type Technical Note Identifier NB171ABK Source 175:924 Rights Thomas Edison National Historical Park Has Version https://archive.org/details/edisonmicrofilm175/page/n934/mode/1up Archive.org Viewer, Microfilm Series Reel 175 Is Part Of NB171-F Uri https://edisondigital.rutgers.edu/document/NB171ABK https://edisondigital.rutgers.edu/document/NB171ABK --