Number | Name | Date | Kind |
---|---|---|---|
3553883 | Fisher | Jan 1971 | A |
3696548 | Teller | Oct 1972 | A |
4552541 | Bolli | Nov 1985 | A |
4556393 | Bolli | Dec 1985 | A |
4743202 | Bach | May 1988 | A |
4883440 | Bolli | Nov 1989 | A |
5042972 | Bach et al. | Aug 1991 | A |
5088951 | Majurinen | Feb 1992 | A |
5848503 | Toft et al. | Dec 1998 | A |
6062937 | Kikuchi | May 2000 | A |
Number | Date | Country |
---|---|---|
2188956 | Oct 1987 | GB |
Entry |
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Lego Mindstorms, Power of Robotics @ Your Command, ROBOTICS Invention System, Constructopedia, 1998, The LEGO Group, pp. 3-47. |