| Number | Name | Date | Kind |
|---|---|---|---|
| 27645 | McGregor | Mar 1860 | |
| 78304 | Martin | May 1868 | |
| 1248931 | Schuman | Dec 1917 | |
| 3103381 | Schliephacke | Sep 1963 | |
| 3550952 | Ferguson | Dec 1970 | |
| 3873152 | Galas | Mar 1975 | |
| 3980335 | Marhefka | Sep 1976 | |
| 4249772 | Rogers, Jr. | Feb 1981 | |
| 4410213 | Samson | Oct 1983 | |
| 4570996 | Rogers, Jr. | Feb 1986 | |
| 4577902 | Crum | Mar 1986 | |
| 4662673 | Crum | May 1987 | |
| 4669778 | Rogers, Jr. | Jun 1987 | |
| 4863215 | Crum | Sep 1989 | |
| 4878710 | Tackor | Nov 1989 | |
| 4915444 | Rogers, Jr. | Apr 1990 | |
| 5000510 | Lafer | Mar 1991 |
| Number | Date | Country |
|---|---|---|
| 598504 | May 1934 | DEX |
| 359259 | May 1938 | ITX |
| Entry |
|---|
| Hall, Jr., Allen S., "Kinematics & Linkage Design", 1961, pp. 1-10. |