Number | Date | Country | Kind |
---|---|---|---|
50-82077 | Jul 1975 | JA |
Number | Name | Date | Kind |
---|---|---|---|
3075919 | Gruber et al. | Jan 1963 | |
3243375 | Jeschke | Mar 1966 |
Number | Date | Country |
---|---|---|
2,413,430 | Oct 1974 | DT |
2,036,612 | Feb 1971 | DT |
2,235,383 | Feb 1973 | DT |
40-22055 | Sep 1965 | JA |
Entry |
---|
Umeki, "Chem. Abstracts," vol. 82, 1975, 79751v. |