Url https://edisondigital.rutgers.edu/document/N317037 Resource class dctype:Text Title [N317037], Technical Note, Thomas Alva Edison, April 7th, 1886 Creator Edison, Thomas Alva Subject Heat and thermodynamics Electricity and magnetism Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1886-04-07 Type Technical Note Identifier N317037 Source 43:21 Relation Edison, Mina Miller (Mrs Thomas A.) Rights Thomas Edison National Historical Park Date Created 1886-04-07 Has Version https://archive.org/details/edisonmicrofilm43/page/n29/mode/1up Archive.org Viewer, Microfilm Series Reel 43 Is Part Of N317-F Uri https://edisondigital.rutgers.edu/document/N317037 https://edisondigital.rutgers.edu/document/N317037 --