Number | Name | Date | Kind |
---|---|---|---|
3252997 | Ridderikhoff et al. | May 1966 | |
3470087 | Broughton | Sep 1969 | |
3953324 | Deal et al. | Apr 1976 | |
3985648 | Casolo | Oct 1976 | |
4619770 | Boston | Oct 1986 | |
4820849 | Diaz et al. | Apr 1989 | |
4861900 | Johnson | Aug 1989 |
Number | Date | Country |
---|---|---|
2163741 | Mar 1986 | GBX |
2194238 | Mar 1988 | GBX |
Entry |
---|
Chemical Abstracts, vol. 108, No. 14, Apr. 4, 1988, Abstract No. 108:115545x. |