Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879606 | EDTV recording apparatus | James M. Walter, Krishnamurthy Jonnalagadda | 1989-11-07 |
| 4845562 | Widescreen television reception and recording system utilizing conventional equipment | Joshua Lawrence Koslov, Michael A. Isnardi, Edward R. Campbell, III | 1989-07-04 |