Number | Name | Date | Kind |
---|---|---|---|
3276541 | Deremer | Oct 1966 | |
3404445 | Crouse | Oct 1968 | |
3889772 | Kelley | Jun 1975 | |
4732025 | Marlinga et al. | Mar 1988 | |
4928509 | Nakamura | May 1990 | |
4959984 | Trudell et al. | Oct 1990 | |
5333775 | Bruggemann et al. | Aug 1994 |
Number | Date | Country |
---|---|---|
1206072 | Sep 1970 | GBX |
Entry |
---|
Dittrich et al., United States Statutory Invention Registration, Reg. No. H82, Jul. 1, 1986. |