Number | Date | Country | Kind |
---|---|---|---|
11108/74 | Aug 1974 | CH |
Number | Name | Date | Kind |
---|---|---|---|
3697513 | Siegrist | Oct 1972 | |
3725395 | Siegrist et al. | Apr 1973 | |
3732221 | Siegrist et al. | May 1973 | |
3796705 | Siegrist | Mar 1974 | |
3819615 | Siegrist | Jun 1974 | |
3830848 | Siegrist | Aug 1974 | |
3843633 | Weber et al. | Oct 1974 | |
3891632 | Fleck et al. | Jun 1975 | |
3901883 | Liechti et al. | Aug 1975 |
Number | Date | Country |
---|---|---|
2,262,340 | Jun 1973 | DT |
2,025,792 | Oct 1970 | DT |
Entry |
---|
Dorlars et al., Chem. Abstracts, 1969 (71) No. 126001. |
Okada et al., Chem. Abstracts, 1969 (71) No. 126004. |