Url https://edisondigital.rutgers.edu/document/NA155AAC Resource class dctype:Text Title [NA155AAC], Technical Note, Thomas Alva Edison, May 15th, 1909 Creator Edison, Thomas Alva Subject Chemicals, chemical products, and chemical processes Cylinder record and duplicating technology Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1909-05-15 Type Technical Note Identifier NA155AAC Source 168:870 Rights Thomas Edison National Historical Park Date Created 1909-05-15 Has Version https://archive.org/details/edisonmicrofilm168/page/n880/mode/1up Archive.org Viewer, Microfilm Series Reel 168 Is Part Of NA155-F Uri https://edisondigital.rutgers.edu/document/NA155AAC https://edisondigital.rutgers.edu/document/NA155AAC --