| Patents for A63B 21 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices (25,224) |
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| 07/27/1976 | US3971556 Combination book end and dumbell apparatus and method of utilizing same |
| 07/27/1976 | US3971555 Multipurpose body exercising machine |
| 06/29/1976 | US3966204 Elastic type exercising apparatus |
| 06/29/1976 | US3966203 Resistance type golf swing practice and exercise device |
| 06/22/1976 | US3964742 Physiological active and passive exercising apparatus |
| 05/25/1976 | US3958803 Gymnastic push-pull exercise appliance |
| 05/18/1976 | US3957266 Exercising post and platform |
| 05/11/1976 | US3955655 Adjustable liquid-operated shock-absorber |
| 04/27/1976 | US3953026 Arm wrestling exercise machine |
| 04/27/1976 | US3953025 Muscle building exercise device |
| 04/27/1976 | US3952352 Electronic stroke effectiveness sensor for competitive swimmers |
| 04/20/1976 | US3951413 Golf club driver with center of gravity movable during swing |
| 04/20/1976 | US3951404 Exercising device having tubular lengths of stretchable material the ends of which have connecting means to form the lengths into endless bands |
| 03/30/1976 | US3947025 Arm wrestling unit |
| 03/16/1976 | US3944221 Resistance device for a gymnastics apparatus |
| 03/16/1976 | US3944220 Glove and hand exerciser |
| 03/16/1976 | US3944219 Multipositionable portable and collapsible horizontal bar exercising apparatus |
| 03/09/1976 | US3942790 Exercising device |
| 03/02/1976 | US3941377 Apparatus for simulated skiing |
| 02/17/1976 | US3938803 Dual purpose exercising device |
| 02/10/1976 | US3937470 Game footbag |
| 02/10/1976 | US3937462 Exercising device |
| 02/10/1976 | US3937461 Exerciser for aerial calisthenics |
| 01/27/1976 | US3934878 Erratic movement tethered ball |