| Number | Name | Date | Kind |
|---|---|---|---|
| 3252260 | Mills | May 1966 | A |
| 3261625 | Cripe | Jul 1966 | A |
| 3363372 | Raynes | Jan 1968 | A |
| 3386221 | Giovannucci | Jun 1968 | A |
| 3416282 | Daugherty | Dec 1968 | A |
| 4258520 | Rehbein | Mar 1981 | A |
| 5474402 | Wu | Dec 1995 | A |
| 5724779 | Chang | Mar 1998 | A |
| 5875596 | Muller | Mar 1999 | A |
| 6085485 | Murdock | Jul 2000 | A |
| Entry |
|---|
| 80/20 The Industrial Erector Set, 1998, 80/20 Inc., Catalog No. 0498, 300. |