Number | Name | Date | Kind |
---|---|---|---|
1768819 | Bradley et al. | Jul 1930 | |
1768820 | Bradley et al. | Jul 1930 | |
1768822 | Bradley et al. | Jul 1930 | |
1795757 | Bradley et al. | Mar 1931 | |
3483120 | Hatch | Dec 1969 | |
3531370 | Gould | Sep 1970 | |
3652407 | Paleos | Mar 1972 | |
3758405 | Fremont | Sep 1973 | |
3945917 | Foster | Mar 1976 | |
3998730 | Plotz et al. | Dec 1976 | |
4000033 | Nicolle et al. | Dec 1976 | |
4049546 | Rock | Sep 1977 | |
4069152 | Specken | Jan 1978 | |
4196043 | Singh | Apr 1980 | |
4874521 | Newman et al. | Oct 1989 | |
5032286 | Newman et al. | Jul 1991 | |
5127992 | Davies et al. | Jul 1992 | |
5190669 | Weibel | Mar 1993 | |
5194163 | Saugier | Mar 1993 | |
5326479 | Sarker et al. | Jul 1994 |
Entry |
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Parthasarathy, V. R., et al, "Decolourization of Pulp and Paper Mill Effluents", Int. Sem. Mgmt. Envir. Problems Pulp Paper Ind. (New Delhi), pp., 139-159, Feb. 24-25, 1982. |