Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4260360 | Method and means for replicating centrally apertured video disc records | John R. Holmes | 1981-04-07 |
| 4185955 | Apparatus for replicating centrally apertured video disc records | John R. Holmes | 1980-01-29 |