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[N106135A], Technical Note, Alexander Welsh, December 15th, 1880

Title: [N106135A], Technical Note, Alexander Welsh, December 15th, 1880
Editor's Notes: "from this day all regular carbons are to be distinguished as follows:" 6 inch=A; 3 inch=B; 2 in=C; 1 1/2=D.
Author: Welsh, Alexander
Date: 1880-12-15
Type: Technical Note
Subject: Electric light and power; Incandescent lamp
Folder ID: N106-F
Microfilm ID: 36:525
Document ID: N106135A
URL: https://edisondigital.rutgers.edu/document/N106135A
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 36