Telephone-Circuit, April 27, 1886
Item
- Title
- Telephone-Circuit, April 27, 1886
- Author
- Thomas A. Edison
- Date Executed
- 1885-01-02
- Date Filed
- 1885-10-14
- Date Issued
- 1886-04-27
- Type
- Patent Issued
- Subject
- Telegraphy and Telephony
- Document ID
- PAT340709
- Has Format
- https://iiif.archive.org/iiif/edisonpatent340709/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