Patent US 3831199A
| Patent number | US 3831199A (click link for details and documents via Google Patents) |
|---|---|
| Title | Common transport for magnetic tape cartridge or magnetic card cartridge |
| Inventors | Howard Vollum, Sid Broughton |
| Company | Tektronix Inc |
| Filing date | 1973-03-19 |
| Grant date | 1974-08-20 |