Number | Name | Date | Kind |
---|---|---|---|
3280179 | Ernst | Oct 1966 | |
3983079 | Spadini | Sep 1976 | |
4107095 | Kusch | Aug 1978 | |
4139553 | Petzold | Feb 1979 | |
4214102 | Leenders | Jul 1980 |
Number | Date | Country |
---|---|---|
0113000 | Sep 1981 | JPX |
0105497 | Jun 1982 | JPX |
Entry |
---|
Chemical Abstracts No. 209195c, vol. 104, No. 24; E. Zielinska et al.: "Betaine from Tertiary Amines", 1986. |