Telegraph, March 24, 1891

Item

Title
Telegraph, March 24, 1891
Author
Thomas A. Edison
Date Executed
1886-07-15
Date Filed
1886-07-19
Date Issued
1891-03-24
Type
Patent Issued
Subject
Telegraphy and Telephony
Document ID
PAT448779
Has Format
https://iiif.archive.org/iiif/edisonpatent448779/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