| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Australia | 4 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nelson Alfred M | 13 |
| #2 | Adams Robert P | 9 |
| #3 | Raffaelli Alan N | 4 |
| #4 | Redman Charles E | 4 |
| #5 | Adams Robert | 2 |
| #6 | Nelson Alfred | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5526197A | Tape drive system | |
| US5537267A | Apparatus for, and methods of, processing a slave cassette to obtain a transfer of an image on a master tape to a slave tape in the slave cassette | |
| US5523897A | Tape duplicating system | |
| AU660986B2 | Tape duplicating system | |
| US5392976A | Servo system |