Number | Date | Country | Kind |
---|---|---|---|
2866/90 | Sep 1990 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
2388688 | Hass | Nov 1945 | |
3666798 | Matsui et al. | May 1972 | |
4487956 | Suzukamo et al. | Dec 1984 | |
4683089 | Leigh | Jul 1987 | |
4780252 | Leigh | Oct 1988 |
Number | Date | Country |
---|---|---|
0048301 | Mar 1982 | EPX |
1260847 | Jan 1972 | GBX |
1596033 | Aug 1981 | GBX |
Entry |
---|
Chemical Abstract, 99:104949b, (1983). |