| Number | Name | Date | Kind |
|---|---|---|---|
| 1542743 | Stevenson | Jun 1925 | |
| 2203244 | White | Jun 1940 | |
| 2779107 | Brace | Jan 1957 | |
| 2914865 | Hall | Dec 1959 | |
| 3248809 | Stifano | May 1966 | |
| 4035616 | Piringer | Jul 1977 | |
| 4140895 | Tatai | Feb 1979 | |
| 4144446 | Sanders | Mar 1979 |
| Number | Date | Country |
|---|---|---|
| 2301860 | Jul 1974 | DEX |
| Entry |
|---|
| Bulch, Jennifer, "Biorhythms: A Key to Your Ups and Downs", Readers Digest, Sep. 1977, p. 63. |