Number | Date | Country | Kind |
---|---|---|---|
2835445 | Aug 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2688627 | Cohen et al. | Sep 1954 | |
3598745 | Dunkel | Aug 1971 | |
3679749 | Grossman et al. | Jul 1972 | |
3786075 | Teisseire et al. | Jan 1974 |
Number | Date | Country |
---|---|---|
2249376 | Apr 1973 | DEX |
Entry |
---|
Chem. Ab. 49:12541e, 1956. |