Number | Name | Date | Kind |
---|---|---|---|
2774421 | Lion | Dec 1956 | |
3164438 | Thomas | Jan 1965 | |
3290203 | Antonson et al. | Dec 1966 | |
3310575 | Spivack | Mar 1967 | |
3351558 | Zimmerer | Nov 1967 | |
3488368 | Spivack | Jan 1970 | |
3681179 | Theissen | Aug 1972 | |
3974323 | Brouilette et al. | Aug 1976 | |
4095013 | Burger | Jun 1978 |
Number | Date | Country |
---|---|---|
2034436 | Jan 1972 | DEX |
Entry |
---|
Ciba-Geigy, UV Stabilizer, "Irgastab" 2002, 3/20/78, pp. 2-7. |