Process of Molding, February 22, 1921

Item

Title
Process of Molding, February 22, 1921
Author
Thomas A. Edison
Date Executed
1919-08-01
Date Filed
1919-08-05
Date Issued
1921-02-22
Type
Patent Issued
Subject
Phonographs and Sound Recording
Document ID
PAT1369272
Has Format
https://iiif.archive.org/iiif/edisonpatent1369272/manifest.json
Rights
Edison's patents are in the public domain and have been made available through the generosity of David Kovanen.
Publisher
The Thomas A. Edison Papers