Number | Date | Country | Kind |
---|---|---|---|
3132674 | Aug 1981 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2438379 | Archibald et al. | Mar 1948 | |
2930762 | Schoenenberger | Mar 1960 | |
3033801 | Kloepfer et al. | May 1962 | |
3333776 | Rauner | Aug 1967 | |
3334062 | Brown | Aug 1967 | |
3393155 | Schutte | Jul 1968 | |
3547832 | Hass et al. | Dec 1970 | |
3907512 | Ziegenhain et al. | Sep 1975 | |
4052334 | Mockett | Oct 1977 | |
4280929 | Shaw et al. | Jul 1981 |
Number | Date | Country |
---|---|---|
12063 | Jun 1980 | EPX |
927535 | May 1963 | GBX |
Entry |
---|
Koth, Chem. Tech. 52 (1980), No. 8, pp. 628-634. |