Phonograph, June 30, 1891
Item
- Title
- Phonograph, June 30, 1891
- Author
- Thomas A. Edison
- Date Executed
- 1890-07-05
- Date Filed
- 1890-07-30
- Date Issued
- 1891-06-30
- Type
- Patent Issued
- Subject
- Phonographs and Sound Recording
- Document ID
- PAT454942
- Has Format
- https://iiif.archive.org/iiif/edisonpatent454942/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