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[PT032AIM3], Letter from William Horatio Mason to Frank Lewis Dyer, March 3rd, 1908

Title: [PT032AIM3], Letter from William Horatio Mason to Frank Lewis Dyer, March 3rd, 1908
Author: Mason, William Horatio
Recipient: Dyer, Frank Lewis
Date: 1908-03-03
Type: Letter
Subject: Patent application; Microphone and other acoustic devices
Folder ID: PT032AIM-F
Microfilm ID: 185:544
Document ID: PT032AIM3
URL: https://edisondigital.rutgers.edu/document/PT032AIM3
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 185