Url https://edisondigital.rutgers.edu/document/PT032ADQ1 Resource class dctype:Text Title [PT032ADQ1], Technical Note, Thomas Alva Edison, July 20th, 1892 Creator Edison, Thomas Alva Subject Patent application Rolls and crushers Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1892-07-20 Type Technical Note Identifier PT032ADQ1 Source 115:250 Relation Dyer, Richard Nott Rights Thomas Edison National Historical Park Date Created 1892-07-20 Has Version https://archive.org/details/edisonmicrofilm115/page/n259/mode/1up Archive.org Viewer, Microfilm Series Reel 115 Is Part Of PT032ADQ-F Uri https://edisondigital.rutgers.edu/document/PT032ADQ1 https://edisondigital.rutgers.edu/document/PT032ADQ1 --