Url https://edisondigital.rutgers.edu/document/MBN001061 Resource class dctype:Text Title [MBN001061], Technical Note, Charles Batchelor, April 12th, 1877 Creator Batchelor, Charles Subject Tools and machinery Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1877-04-12 Type Technical Note Identifier MBN001061 Source 90:646 Relation Pratt and Whitney Co Rights Thomas Edison National Historical Park Date Created 1877-04-12 Has Version https://archive.org/details/edisonmicrofilm90/page/n656/mode/1up Archive.org Viewer, Microfilm Series Reel 90 Is Part Of MBN001-F Uri https://edisondigital.rutgers.edu/document/MBN001061 https://edisondigital.rutgers.edu/document/MBN001061 --