Recording-Telephone, December 19, 1911

Item

Title
Recording-Telephone, December 19, 1911
Author
Thomas A. Edison
Date Executed
1905-09-14
Date Filed
1905-09-15
Date Issued
1911-12-19
Type
Patent Issued
Subject
Phonographs and Sound Recording
Document ID
PAT1012250
Has Format
https://iiif.archive.org/iiif/edisonpatent1012250/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