Url https://edisondigital.rutgers.edu/document/CJ053071 Resource class dctype:Text Title [CJ053071], Technical Note, Thomas Alva Edison, Charles Batchelor, March 8th, 1892 Creator Batchelor, Charles Edison, Thomas Alva Subject Research and development Rolls and crushers Ore concentrate Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1892-03-08 Type Technical Note Identifier CJ053071 Source 151:516 Relation Booth Garrett and Blair Hunt and Clapp Rights Thomas Edison National Historical Park Date Created 1892-03-08 Has Version https://archive.org/details/edisonmicrofilm151/page/n524/mode/1up Archive.org Viewer, Microfilm Series Reel 151 Is Part Of CJ053-F Uri https://edisondigital.rutgers.edu/document/CJ053071 https://edisondigital.rutgers.edu/document/CJ053071 --