Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828341 | Magnetic tape cassette box | Peter Ackeret | 1989-05-09 |
| 4743077 | Magnetic tape cassette box | Peter Ackeret | 1988-05-10 |
| 4717213 | Magnetic tape cassette box | Peter Ackeret | 1988-01-05 |
| 4592600 | Magnetic tape cassette box | Peter Ackeret | 1986-06-03 |