Number | Date | Country | Kind |
---|---|---|---|
4809/81 | Jul 1981 | CHX |
This is a division of application Ser. No. 391,995 filed June 25, 1982, now U.S. Pat. No. 4,479,011.
Number | Name | Date | Kind |
---|---|---|---|
3890370 | Buchi et al. | Jun 1975 | |
3928456 | Kovats et al. | Dec 1975 | |
3956392 | de Haan et al. | May 1976 | |
4018718 | Ochsner et al. | Apr 1977 | |
4172850 | Trenkle et al. | Oct 1979 | |
4392993 | Thomas et al. | Jul 1983 |
Entry |
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Ohloff et al., Chem. Abst., vol. 90, #4776p (1979). |
Number | Date | Country | |
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Parent | 391995 | Jun 1982 |