Number | Date | Country | Kind |
---|---|---|---|
42 41 690.6 | Dec 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3442421 | Donahue | May 1969 | |
4517706 | Lautenschlager et al. | May 1985 | |
4620343 | Grass | Nov 1986 | |
4698877 | Lautenschlager, Jr. et al. | Oct 1987 | |
5144722 | Salice | Aug 1992 |