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| Number | Title | Issue Date |
| 6675538 | Amusement maze The present invention 10 discloses an amusement maze. The maze of the present invention 10 can be located indoors and consists of a plurality of pivotal wall panels 16 whereby each panel may pivot to open a passage way or close a passage way creating a ne... | 01/13/2004 |
| 5732945 | Toy maze A toy maze comprising a container with a ball having a plurality of passage levels with vertically extending wall segments forming passageways. Each level is separated by a tray having a plurality of apertures, some of which are trap-holes with a mechanis... | 03/31/1998 |
| 4657255 | Pyramid shaped puzzle A pyramid-shaped puzzle including a plurality of maze-panels intermediate the vertex and base of the pyramid, each maze-panel having a plurality of holes through it. One or more balls is dropped through an opening in the vertex and the puzzle is manipulat... | 04/14/1987 |
| 4229006 | Maze puzzle A gameboard, having a recessed playing area, with a series of pivoted shapes, each being a portion of a geometrical shape, secured in spaced relation in the recessed area, and a freely movable, mating piece for each geometrical shape, provides a maze havi... | 10/21/1980 |
| 4206558 | Exercise shoes for simulated jogging An exercise shoe for wear on a human foot during simulated jogging comprises a foot support platform characterized by a substantially planar foot support surface, a sharper-than-circular curved bottom surface for providing forward-breaking and backward-br... | 06/10/1980 |
| 3994076 | Modular computer teaching device A cube is provided with four side walls, and an open bottom and top. Mounted within the cube is a flip-flop unit made up of three wings, one wing being longer than the other two so that when a marble is dropped in the cube, the flip-flop unit will rotate ... | 11/30/1976 |
