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[D8337ZDG], Letter from Charles Batchelor to Thomas Alva Edison, July 26th, 1883

Title: [D8337ZDG], Letter from Charles Batchelor to Thomas Alva Edison, July 26th, 1883
Editor's Notes: One of my men bought a siemens lamp in Germany and tested it with the following results (results follow). At the end of 7 hours, 25 hours and 32 hours it was broke. Discusssion of details of the actual parts of the lamp and how it was affected. Insll marginalia " upton return after"
Author: Batchelor, Charles
Recipient: Edison, Thomas Alva
Mentioned: Siemens and Halske; Insull, Samuel
Date: 1883-07-26
Type: Letter
Subject: International business operations; Testing and quality control; Incandescent lamp
Folder ID: D8337-F
Microfilm ID: 67:824
Document ID: D8337ZDG
URL: https://edisondigital.rutgers.edu/document/D8337ZDG
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 67

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