Number | Name | Date | Kind |
---|---|---|---|
3951251 | Zaccagnino et al. | Apr 1976 | |
4196846 | Kao et al. | Apr 1980 | |
4297735 | Eppich | Oct 1981 | |
4404649 | Nunley et al. | Sep 1983 | |
4678896 | Carlson et al. | Jul 1987 | |
4731524 | Brooks | Mar 1988 | |
4944616 | Watanabe et al. | Jul 1990 | |
5040908 | Matsuya et al. | Aug 1991 | |
5053607 | Carlson et al. | Oct 1991 | |
5175682 | Higashiyama et al. | Oct 1992 | |
5274218 | Urata et al. | Dec 1993 |
Number | Date | Country |
---|---|---|
3804265 | Aug 1989 | DEX |
Entry |
---|
Derwent-Abstract-AN 89-249622. |