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[D7929ZBI], Patent Caveat, Thomas Alva Edison, April 10th, 1879

Title: [D7929ZBI], Patent Caveat, Thomas Alva Edison, April 10th, 1879
Editor's Notes: Thermal expansion lamp regulator; drawing and description. [Filmed as "attachment"---to following LWS letter?]; Supplied year, month, and day
Author: Edison, Thomas Alva
Date: 1879-04-10
Type: Patent Caveat
Subject: Patent application; Telegraph; Switching and fusing
Folder ID: D7929-F
Microfilm ID: 51:466
Document ID: D7929ZBI
URL: https://edisondigital.rutgers.edu/document/D7929ZBI
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 51