Magneto Signal Apparatus, February 22, 1881
Item
- Title
- Magneto Signal Apparatus, February 22, 1881
- Author
- Thomas A. Edison
- Date Executed
- 1880-10-21
- Date Filed
- 1880-11-11
- Date Issued
- 1881-02-22
- Type
- Patent Issued
- Subject
- Telegraphy and Telephony
- Document ID
- PAT238098
- Has Format
- https://iiif.archive.org/iiif/edisonpatent238098/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