Number | Date | Country | Kind |
---|---|---|---|
3900379 | Jan 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3165415 | Kilburn et al. | Jan 1965 | |
3270062 | Merz et al. | Aug 1966 | |
3507764 | Asahi et al. | Apr 1970 | |
3860656 | McCain, Jr. et al. | Jan 1975 | |
4521632 | Wickenhaeuser et al. | Jun 1985 | |
4781809 | Falcone, Jr. | Nov 1988 |
Number | Date | Country |
---|---|---|
1130760 | Oct 1968 | GBX |
Entry |
---|
Chemical Abstracts, vol. 94, No. 4, Jan. 26, 1981, p. 354, Zusammenfassung Nr. 20979v. |