Phonograph, December 20, 1892

Item

Title
Phonograph, December 20, 1892
Author
Thomas A. Edison
Date Executed
1888-05-26
Date Filed
1888-05-29
Date Issued
1892-12-20
Type
Patent Issued
Subject
Phonographs and Sound Recording
Document ID
PAT488189
Has Format
https://iiif.archive.org/iiif/edisonpatent488189/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