Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D265659 | Combined card file and curved top cards | Hildaur L. Neilsen | 1982-08-03 |
| D258897 | Tab cards for a card file | — | 1981-04-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D265659 | Combined card file and curved top cards | Hildaur L. Neilsen | 1982-08-03 |
| D258897 | Tab cards for a card file | — | 1981-04-14 |