|
| US4167940 | 4 août 1977 | 18 sept. 1979 | Ruf Handels AG | Roller type massaging apparatus for the feet |
| US4423735 | 23 déc. 1980 | 3 janv. 1984 | | Dynamic orthotic device containing fluid |
| US4441499 | 7 mai 1980 | 10 avr. 1984 | | Dynamic orthotic platform |
| US4813405 | 24 sept. 1987 | 21 mars 1989 | | Device for stimulating feet having rigid spheroids in dampening medium |
| US5158073 | 18 déc. 1990 | 27 oct. 1992 | | Acupressure foot massage mat |
