Number | Name | Date | Kind |
---|---|---|---|
3577354 | Kehl | May 1971 | |
3893934 | Braun et al. | Jul 1975 | |
4002776 | Braun et al. | Jan 1977 | |
4464452 | Gruber et al. | Aug 1984 | |
4480021 | Lu et al. | Oct 1984 |
Entry |
---|
W. Schulz et al in Chem. Ber. 100, pp. 2640-2648 (1967) (German). |