| Number | Name | Date | Kind |
|---|---|---|---|
| 2791999 | Bustamante | May 1957 | |
| 3605144 | Hayte | Sep 1971 | |
| 4221074 | Gonzalez | Sep 1980 | |
| 4339124 | Vogler | Jul 1982 | |
| 4367870 | Birch | Jan 1983 | |
| 4537393 | Kusch | Aug 1985 | |
| 4583731 | Crivello et al. | Apr 1986 | |
| 4645198 | Levenston | Feb 1987 | |
| 4760842 | Holmes | Aug 1988 | |
| 4838249 | Jannotta | Jun 1989 | |
| 5306232 | Whitmyer | Apr 1994 | |
| 5336139 | Miller | Aug 1994 | |
| 5336498 | Snider | Aug 1994 |
| Number | Date | Country |
|---|---|---|
| 1347606 | Nov 1963 | FRX |
| 225934 | Jan 1968 | DEX |
| Entry |
|---|
| Richard Dominguez, M.D. and Robert Gajda, "Total Body Training" 1982. |
| "Special Populations" catalogue by Flaghouse, pp. 172 and 176 Mar. 1995. |
| Marjorie Craig, "Miss Craig's Face-Saving Exercises", 1970, pp. 78 and 79. |
| One page (p. 8) of Patent No. 2,644,690 from unknown country. |