Class 720 DYNAMIC OPTICAL INFORMATION STORAGE OR RETRIEVAL
| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 600 - 616 | G 11 B | 17 / 03 |
| 600 - 645 | G 11 B | 17 / 04 |
| 600 - 616 | G 11 B | 33 / 02 |
| 630 - 644 | G 11 B | 17 / 03 |
| 646 - 647 | G 11 B | 33 / 02 |
| 648 - 651 | G 11 B | 33 / 14 |
| 651 | G 11 B | 33 / 08 |
| 652 | G 11 B | 33 / 12 |
| 653 - 656 | G 11 B | 17 / 03 |
| 653 - 656 | G 11 B | 17 / 04 |
| 657 | G 11 B | 33 / 02 |
| 658 - 694 | G 11 B | 7 / 00 |
| 695 - 717 | G 11 B | 17 / 03 |
| 695 - 717 | G 11 B | 17 / 028 |
| 695 - 717 | G 11 B | 19 / 20 |
| 718 - 724 | G 11 B | 7 / 24 |
| 718 - 744 | G 11 B | 23 / 03 |
| 745 | G 11 B | 7 / 0033 |
| 746 | G 11 B | 7 / 003 |