Number | Date | Country | Kind |
---|---|---|---|
197 42 507 | Sep 1997 | DE |
Number | Name | Date | Kind |
---|---|---|---|
3126365 | Hooker | Mar 1964 | |
3502633 | Schwaar et al. | Mar 1970 |
Number | Date | Country |
---|---|---|
561782 | Apr 1963 | BE |
570514 | Feb 1959 | CA |
653951 | Dec 1962 | CA |
1420678 | Nov 1968 | DE |
1520556 | Apr 1969 | DE |
Entry |
---|
Database WPI, Section Ch, Week 9731, Derwent Publications Ltd., London, GB; Class A17, AN 97-337077, XP 002089173. |
Chem. Zentralbl. 1964/Heft—25/26. |
Chem. Zentralbl. 1965/Heft—5. |
Chem. Zentralbl. 1964/Heft—47. |