| Patents for A63B 4 - Balance beams (112) | |
|---|---|
| 08/1991 | |
| 08/06/1991 | US5037086 Balance beam with reflex mechanism |
| 06/1991 | |
| 06/14/1991 | WO1991008801A1 Dynamically adjustable gymnastics beam |
| 06/14/1991 | CA2070631A1 Dynamically adjustable gymnastics beam |
| 07/1990 | |
| 07/24/1990 | US4943046 Playground apparatus |
| 09/1989 | |
| 09/06/1989 | EP0331377A2 Playground apparatus |
| 03/1983 | |
| 03/29/1983 | US4378112 Multiple beam playground apparatus |
| 12/1982 | |
| 12/28/1982 | US4365801 Elevational platform for balance beams and like articles |
| 06/1981 | |
| 06/09/1981 | US4272126 Joggling board for use as exercise device or as item of lawn furniture |
| 06/09/1981 | US4272073 Aluminum balance beam |
| 08/1978 | |
| 08/08/1978 | US4105201 Gymnastic balance beam |
| 11/1976 | |
| 11/09/1976 | US3990697 Balance beam with a resilient coating |
| 03/1976 | |
| 03/16/1976 | US3944654 Balance beam training apparatus |
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