Number | Name | Date | Kind |
---|---|---|---|
2538737 | Stanton et al. | Jan 1951 | |
3285887 | de Vries | Nov 1966 | |
3317450 | Grenley et al. | May 1967 | |
3424706 | Smith et al. | Jan 1969 | |
3483154 | Gibbs | Jan 1969 | |
4022849 | Jin et al. | May 1977 |
Number | Date | Country |
---|---|---|
967051 | Aug 1964 | GBX |
Entry |
---|
W. Funke--J. Oil Col. Chem. Assoc. 1977, 60, 438-445. |