Telephones, November 25, 1879
Item
- Title
- Telephones, November 25, 1879
- Author
- Thomas A. Edison
- Date Executed
- 1879-03-24
- Date Filed
- 1879-03-31
- Date Issued
- 1879-11-25
- Type
- Patent Issued
- Subject
- Telegraphy and Telephony
- Document ID
- PAT221957
- Has Format
- https://iiif.archive.org/iiif/edisonpatent221957/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