System of Railway Signaling, November 22, 1892

Item

Title

System of Railway Signaling, November 22, 1892

Author

Thomas A. Edison

Date Executed

1885-03-27

Date Filed

1885-04-07

Date Issued

1892-11-22

Type

Patent Issued

Subject

Telegraphy and Telephony

Document ID

PAT486634

Has Format

https://iiif.archive.org/iiif/edisonpatent486634/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