Url
	https://edisondigital.rutgers.edu/document/NS7402
Resource class
	dctype:Text
Title
	[NS7402] Essay, c. 1874
Creator
	Batchelor, Charles
Subject
	Escapement and governor mechanisms
	Telegraph
	Multiple telegraphy (duplex, quadruplex)
	Automatic telegraphy
	Miscellaneous electrical technologies
Publisher
	Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Date
	1874-00-00
Type
	Essay
Identifier
	NS7402
Source
	7:42
Rights
	Thomas Edison National Historical Park
Has Version
	https://archive.org/details/edisonmicrofilm7/page/n50/mode/1up Archive.org Viewer, Microfilm Series Reel 7
Is Part Of
	NS7402-F
Uri
	https://edisondigital.rutgers.edu/document/NS7402 https://edisondigital.rutgers.edu/document/NS7402

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