Number | Date | Country | Kind |
---|---|---|---|
3631231 | Sep 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3914521 | Beatty et al. | Oct 1975 | |
4302504 | Lansbury et al. | Nov 1981 | |
4303708 | Gebhardt et al. | Dec 1981 | |
4343852 | Isaka et al. | Aug 1982 | |
4419411 | Park | Dec 1983 | |
4477506 | Wang | Oct 1984 | |
4565739 | Clauson et al. | Jan 1986 | |
4590125 | Balloni et al. | May 1986 | |
4595625 | Crass et al. | Jun 1986 | |
4604324 | Nahmias et al. | Aug 1986 | |
4666772 | Schinkel et al. | May 1987 | |
4692379 | Keung et al. | Sep 1987 | |
4734317 | Bothe et al. | Mar 1988 |
Number | Date | Country |
---|---|---|
0069526 | Jan 1983 | EPX |
0071349 | Feb 1983 | EPX |
0078535 | May 1983 | EPX |
Entry |
---|
Ullmanns Encyklopaedie der Technischen Chemie, 4th Ed., vol. 2, pp. 539-553. |