Number | Date | Country | Kind |
---|---|---|---|
1770518 | May 1968 | DT |
Number | Name | Date | Kind |
---|---|---|---|
3649597 | Henley | Mar 1972 |
Number | Date | Country |
---|---|---|
2,016,100 | May 1970 | FR |
Entry |
---|
Micchelli et al., Chemical Abstract, vol. 70:3625 (1969). |
Number | Date | Country | |
---|---|---|---|
Parent | 263517 | Jun 1972 |