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[X098A011], Letter from Edison Lamp Co to William Joseph Hammer, December 14th, 1881

Title: [X098A011], Letter from Edison Lamp Co to William Joseph Hammer, December 14th, 1881
Author: Edison Lamp Co
Recipient: Hammer, William Joseph
Date: 1881-12-14
Type: Letter
Subject: Testing and quality control; Incandescent lamp
Folder ID: X098A-F
Document ID: X098A011
URL: https://edisondigital.rutgers.edu/document/X098A011
Rights: NMAH Archives Center
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University