Number | Date | Country | Kind |
---|---|---|---|
2302582 | Jan 1973 | DEX |
This application is a continuation-in-part of our copending application Ser. No. 434,248 (now abandoned).
Number | Name | Date | Kind |
---|---|---|---|
3527748 | Ackermann et al. | Sep 1970 | |
3531457 | Ackermann et al. | Sep 1970 | |
3531458 | Ackermann et al. | Sep 1970 | |
3532682 | Ackermann et al. | Oct 1970 | |
3558261 | Ackermann et al. | Jan 1971 | |
3598801 | Beffa et al. | Aug 1971 | |
3856772 | Dunkelmann et al. | Dec 1974 |
Number | Date | Country |
---|---|---|
2302582 | Aug 1974 | DEX |
Entry |
---|
Venkataraman, "The Chemistry of Synthetic Dyes", vol. I, Academic Press Inc., New York, 1952, p. 270. |
Number | Date | Country | |
---|---|---|---|
Parent | 434248 | Jan 1974 |