Url https://edisondigital.rutgers.edu/document/NB244188A Resource class dctype:Text Title [NB244188A], Technical Note, Ludwig Fredrick Ott, November 20th, 1924 Creator Ott, Ludwig Fredrick Subject Chemicals, chemical products, and chemical processes Disc record and duplicating technology Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1924-11-20 Type Technical Note Identifier NB244188A Source 240:861 Rights Thomas Edison National Historical Park Date Created 1924-11-20 Has Version https://archive.org/details/edisonmicrofilm240/page/n870/mode/1up Archive.org Viewer, Microfilm Series Reel 240 Is Part Of NB244-F Uri https://edisondigital.rutgers.edu/document/NB244188A https://edisondigital.rutgers.edu/document/NB244188A --