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[D8220ZBE], Letter from B Hempstead to Thomas Alva Edison, December 26th, 1882

Title: [D8220ZBE], Letter from B Hempstead to Thomas Alva Edison, December 26th, 1882
Editor's Notes: "What is the least battery force for one of your incandescent lamps, it to be lighted at the distance of a mile form the electric source." This is for flashing the light for signal purposes.
Author: Hempstead, B
Recipient: Edison, Thomas Alva
Date: 1882-12-26
Type: Letter
Subject: Electric battery; Electric light and power
Folder ID: D8220-F
Microfilm ID: 60:833
Document ID: D8220ZBE
URL: https://edisondigital.rutgers.edu/document/D8220ZBE
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 60
License: CC0 1.0 Universal

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