Relay-Magnets for Telegraph Instruments, May 09, 1871

Item

Title

Relay-Magnets for Telegraph Instruments, May 09, 1871

Author

Thomas A. Edison

Date Executed

1870-09-06

Date Filed

1870-09-21

Date Issued

1871-05-09

Type

Patent Issued

Subject

Telegraphy and Telephony

Document ID

PAT114657

Has Format

https://iiif.archive.org/iiif/edisonpatent114657/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