Number | Name | Date | Kind |
---|---|---|---|
4244123 | Lazure et al. | Nov 1981 | |
4630685 | Huck, Jr. et al. | Dec 1986 | |
4677555 | Goyet | Jun 1987 | |
4776750 | Griswold, Jr. et al. | Oct 1988 | |
4812991 | Hatch | Mar 1989 | |
4888890 | Studebaker et al. | Dec 1989 | |
4912643 | Beirxe | Mar 1990 | |
4963889 | Hatch | Oct 1990 | |
5065326 | Sahm | Nov 1991 |
Entry |
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Article entitled "Artificial intelligence in the control and operation of construction plant-the autonomous robot excavator" published 1993. |
Article entitled "Automation and Robotics in Construction"-vol. 1 by FHG (9 pgs.) believed to have been published on or about Jun. 1991. |
Article entitled "Backhoe Monitor" by IHC-3 Pgs.-Publication date unknown but believed to be prior to one year before the filing date. |