| Number | Name | Date | Kind |
|---|---|---|---|
| 3806157 | Yarnell | Apr 1974 | |
| 4129318 | Cahill | Dec 1978 |
| Number | Date | Country |
|---|---|---|
| 178482 | Dec 1980 | JPX |
| Entry |
|---|
| Cycle sports vol. 12/1980 (Dec. 1, 1980 published). |
| Cycle sports vol. 1/1982 (Jan. 1, 1982 published). |
| "Motor X" Accessories by Hunt-Wilde in American Bicyclist and Motorcyclist, Jun. 1975. |