| Number | Name | Date | Kind |
|---|---|---|---|
| H1469 | Simonoff | Aug 1995 | |
| 4712184 | Haugerud | Dec 1987 | |
| 4815733 | Yokoi | Mar 1989 | |
| 4840302 | Rose | Jun 1989 | |
| 4846693 | Baer | Jul 1989 | |
| 4930019 | Chu | May 1990 | |
| 5191615 | Aldava et al. | Mar 1993 | |
| 5195920 | Collier | Mar 1993 | |
| 5209695 | Rothschild | May 1993 | |
| 5636994 | Tong | Jun 1997 | |
| 5648999 | Easterling et al. | Jul 1997 | |
| 5655945 | Jani | Aug 1997 | |
| 5697829 | Chainani et al. | Dec 1997 |
| Number | Date | Country |
|---|---|---|
| 2572300 | May 1986 | FRX |
| 8302188 | Jun 1983 | WOX |
| Entry |
|---|
| "Heath's HERO-1 Robot," product description, BYTE Publications, Jan. 1983, pp. 86-96. |