Number | Name | Date | Kind |
---|---|---|---|
2301861 | Downing et al. | Nov 1942 | |
2533205 | Chenicek | Dec 1950 | |
3756943 | Hopkins et al. | Sep 1973 | |
3895041 | Inman et al. | Jul 1975 | |
4638096 | Virnig | Jan 1987 | |
4673412 | Stoldt et al. | Jun 1987 | |
4861904 | Sugie | Aug 1989 | |
5266283 | Friesen et al. | Nov 1993 | |
5281578 | Bradley et al. | Jan 1994 |
Number | Date | Country |
---|---|---|
1458695 | Dec 1976 | GBX |
Entry |
---|
Nakamura et al, Chemical Abstracts, vol. 95 (1981) 141973t. |
Rohrbach et al, Chemical Abstracts, vol. 91 (1979) 131167m. |
Saeed et al, Chemical Abstracts, vol. 110 (1989) 47672a. |
Chen et al, Chemical Abstracts, vol. 11 (1989) 49339s. |
Oki et al, Chemical Abstracts, vol. 113 (1990) 144050r. |
Xin, Chemical Abstracts, vol. 119 (1993) 285180u. |