Number | Name | Date | Kind |
---|---|---|---|
1847095 | Mittasch et al. | Mar 1932 | |
2063596 | Feiler | Dec 1936 | |
3342723 | Godar | Sep 1967 | |
3531394 | Koszman | Sep 1970 | |
3661820 | Foreman et al. | May 1972 | |
3687840 | Sze et al. | Aug 1972 | |
3876527 | Dugan et al. | Apr 1975 | |
4511457 | Miller et al. | Apr 1985 | |
4555326 | Reid | Nov 1985 | |
4663018 | Ried et al. | May 1987 | |
4673489 | Poling | Jun 1987 | |
4680421 | Forester et al. | Jul 1987 | |
4719001 | Dvorack | Jan 1988 | |
4724064 | Reid | Feb 1988 | |
4756820 | Ried et al. | Jul 1988 |
Number | Date | Country |
---|---|---|
275662 | Aug 1928 | GBX |
296752 | Sep 1928 | GBX |
Entry |
---|
Chemical Abstracts: vol. 83: 30687K 1975, 87: 154474r 1977; 95: 135651v 1981; 92: 8645j 1980. |