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[D7903ZIV], Letter from Jesse H Bunnell to Thomas Alva Edison, October 13th, 1879

Title: [D7903ZIV], Letter from Jesse H Bunnell to Thomas Alva Edison, October 13th, 1879
Editor's Notes: Briefly describes 5 alternate ways of constructing a circuit through a moving cage to signal its position. [Is this the elevator annnunciator?]
Author: Bunnell, Jesse H
Recipient: Edison, Thomas Alva
Date: 1879-10-13
Type: Letter
Subject: Railroads and transportation; Dynamos and generators; Miscellaneous electrical technologies
Folder ID: D7903-F
Microfilm ID: 49:420
Document ID: D7903ZIV
URL: https://edisondigital.rutgers.edu/document/D7903ZIV
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 49

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