| Number | Name | Date | Kind |
|---|---|---|---|
| 439297 | Heyder | Oct 1890 | A |
| 1165216 | Weflen | Dec 1915 | A |
| 1333005 | Warner | Mar 1920 | A |
| 3428325 | Atkinson | Feb 1969 | A |
| 4092799 | Anderson | Jun 1978 | A |
| 4157827 | Winston et al. | Jun 1979 | A |
| 4778173 | Joutras | Oct 1988 | A |
| 4878673 | Pollard | Nov 1989 | A |
| 5058883 | Dybvik | Oct 1991 | A |
| 5092583 | Rudolf | Mar 1992 | A |
| 5342271 | Long | Aug 1994 | A |
| 5542676 | Howe, Jr. et al. | Aug 1996 | A |
| 5842956 | Strachan | Dec 1998 | A |
| 5895341 | Jones | Apr 1999 | A |
| 6270434 | Shaw | Aug 2001 | B1 |
| Entry |
|---|
| Cybex Strength Systems, 1995 brochure for VR2 line of equipment. |