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| Number | Title | Issue Date |
| 6719607 | Control system for, and method of, operating toy vehicles Each of first vehicles has an individual address dependent upon an insertion of a selective one of different keys into a socket in the vehicle. Each of the first vehicles is movable in any desired direction on a first support structure formed by intercoupling male d... | 04/13/2004 |
| 6666746 | Control system for, and method of, operating toy vehicles Each of first vehicles has an individual address dependent upon an insertion of a selective one of different keys into a socket in the vehicle. Each vehicle is movable in any desired direction on a first support structure formed by intercoupling male dete... | 12/23/2003 |
| 6656012 | System and method for communicating with and controlling toy accessories Switches in pads may be closed to select toy vehicles and operate motors in the vehicles for moving (a) the vehicles in any direction and (b) a bin holding transportable elements (e.g. marbles). A central station interrogates the pads, forms packets of si... | 12/02/2003 |
| 6475058 | Rotary tower crane with vertically extendable and retractable load maneuvering boom A slewing unit mounted to the upper end of a tower rotates a combination jib and counterjib which extends in a horizontal direction about a vertical axis. A first electrical drive unit powers the slewing unit to rotate the jib to a selected angular positi... | 11/05/2002 |
| 6450856 | Control system for, and method of, operating toy vehicles Each of first vehicles has an individual address dependent upon an insertion of a selective one of different keys into a socket in the vehicle. Each vehicle is movable in any desired direction on a first support structure formed by intercoupling male dete... | 09/17/2002 |
| 6238265 | Remote control system for operating toys When manually closed, switches in pads select toy vehicles and the operation of motors for moving the vehicles forwardly, rearwardly, leftwardly and rightwardly and moving upwardly and downwardly (and rightwardly and leftwardly) a receptacle for holding t... | 05/29/2001 |
| 5989096 | Toy fork lift vehicle with improved steering A remotely-controllable motorized toy vehicle having a highly-maneuverable skid steering system driven by single or dual motors, having a separately motorized lift device pivotally secured to the chassis of the vehicle operative to lift and transport tran... | 11/23/1999 |
| 5964640 | Toy dump truck with automatic dumper mechanism A remotely-controllable motorized toy vehicle having a highly-maneuverable skid steering system driven by single or dual motors, having a separately motorized scoop loading device pivotally secured to the chassis of the vehicle operative to load transport... | 10/12/1999 |
