Number | Date | Country | Kind |
---|---|---|---|
76 12985 | Apr 1976 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
1669764 | Knecht | May 1928 | |
2518077 | Schmid et al. | Aug 1950 | |
2750326 | Eckardt | Jun 1956 | |
2750327 | Eckardt | Jun 1956 | |
2927132 | Barber et al. | Mar 1960 | |
3274249 | Brunner et al. | Sep 1966 |
Number | Date | Country |
---|---|---|
2132214 | Mar 1975 | FRX |
120081 | Oct 1918 | GBX |
1171104 | Nov 1969 | GBX |
Entry |
---|
Chemical Abstracts, vol. 41, column 5484-5485, (1947). |