Number | Date | Country | Kind |
---|---|---|---|
3825119 | Jul 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2404164 | Carpenter | Jul 1946 | |
2425693 | Cook et al. | Aug 1947 | |
2448979 | Hopff et al. | Sep 1948 | |
2459062 | Cook et al. | Jan 1949 | |
2459088 | Moss et al. | Jan 1949 | |
2816130 | Selcer et al. | Dec 1957 | |
4709072 | Merger et al. | Nov 1987 |
Number | Date | Country |
---|---|---|
1189975 | Apr 1965 | DEX |
81-8550 | Oct 1983 | JPX |
1007690 | Oct 1965 | GBX |
Entry |
---|
Chemical Abstracts, vol. 68, (1968), No. 29272e. |