Number | Date | Country | Kind |
---|---|---|---|
2524/83 | May 1983 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3775424 | Farber | Nov 1973 | |
3916070 | Ozutsumi et al. | Oct 1975 | |
4102893 | Garner et al. | Jul 1978 |
Number | Date | Country |
---|---|---|
1416778 | Dec 1975 | GBX |
Entry |
---|
Japanese (Derwent) J49118515. |