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[D8468V], Patent Application, Sigmund Bergmann, February 28th, 1884

Title: [D8468V], Patent Application, Sigmund Bergmann, February 28th, 1884
Editor's Notes: Typescript of patent application Case # 122,230 Filed 2/28/1884 for improvements in electro-thermal receivers. Use tellurium buttons.
Author: Bergmann, Sigmund
Date: 1884-02-28
Type: Patent Application
Subject: Patent application; Telephone
Folder ID: D8468-F
Microfilm ID: 76:736
Document ID: D8468V
URL: https://edisondigital.rutgers.edu/document/D8468V
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 76