| Patents for A63B 61 - Tennis nets or accessories for tennis or like games (932) |
|---|
| 01/27/1981 | US4247099 Tennis net center stay and measuring device |
| 01/06/1981 | US4243221 Training device for practicing the service in tennis |
| 11/26/1980 | EP0019065A2 Case structure, particularly for tennis rackets and the like |
| 11/04/1980 | US4231572 Tennis ball target |
| 06/03/1980 | US4205840 Net height measuring systems |
| 05/27/1980 | US4204679 Tennis practice serving net |
| 10/23/1979 | US4171796 Utility winch |
| 07/10/1979 | US4160549 Tennis serve training and practice device |
| 06/26/1979 | US4159116 Stress relieving device |
| 05/08/1979 | US4153247 Equal tensioned game net assembly |
| 10/24/1978 | US4122451 Net post suitable for use in ball games |
| 09/26/1978 | US4116437 Tennis training and rating apparatus |
| 05/30/1978 | US4092024 Support post for game net |
| 05/09/1978 | US4088317 Portable tennis court |
| 04/25/1978 | US4085872 Sling for tennis racket |
| 02/14/1978 | US4073491 Tennis net |
| 12/27/1977 | US4065099 In-post tennis net tightener |
| 11/01/1977 | US4055999 Tension tester for tennis racket strings |
| 08/16/1977 | US4042236 Tennis game method and apparatus |
| 06/21/1977 | US4030733 Portable tennis court |
| 05/10/1977 | US4022471 Volleyball training and blocking device |
| 03/08/1977 | US4010951 Portable support frame for a tennis net |
| 12/21/1976 | US3998455 Free standing portable and knockdown tennis net supporting system |
| 11/23/1976 | US3993306 Tennis target structure |
| 09/14/1976 | US3980299 Tennis game apparatus kit |
| 07/13/1976 | US3968968 Mini-volleyball court layout |
| 07/06/1976 | US3967339 Roller for removing water from and simultaneously drying hard surfaces |
| 06/08/1976 | US3961789 Net tightener |
| 02/24/1976 | US3940139 Out-of-bounds wand for volleyball net and support strap |
| 02/17/1976 | US3938806 Net and portable net roller |
| 02/03/1976 | US3936049 Table tennis net holder |
| 01/13/1976 | US3931965 Net post retention device |