Number | Name | Date | Kind |
---|---|---|---|
2737445 | Nossen | Mar 1956 | |
3666446 | Cook et al. | May 1972 | |
3958986 | Thorsen | May 1976 | |
3966569 | Reinhardt et al. | Jun 1976 | |
4125587 | Leimala et al. | Nov 1978 | |
4305919 | Roller | Dec 1981 | |
4401531 | Martin San Lorenzo et al. | Aug 1983 | |
4552629 | Duyvesteyn et al. | Nov 1985 | |
4572771 | Duyvesteyn et al. | Feb 1986 | |
4624704 | Byeseda | Nov 1986 | |
5084180 | Boateng | Jan 1992 | |
5229003 | Duyvesteyn | Jul 1993 |