Number | Date | Country | Kind |
---|---|---|---|
42 40 421.5 | Dec 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2824887 | Klobbing | Feb 1958 | |
3682965 | Hickner et al. | Aug 1972 | |
4912244 | Tzikas | Mar 1990 | |
5227527 | Angenendt et al. | Jul 1993 | |
5278341 | Meier et al. | Jan 1994 |
Number | Date | Country |
---|---|---|
0070808 | Jan 1983 | EPX |
518321 | Dec 1991 | EPX |
2040620 | Feb 1972 | DEX |
9113867 | Feb 1991 | WOX |
Entry |
---|
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science, Bd. 25, Nr. 4, Oct. 1976, New York. |