Number | Name | Date | Kind |
---|---|---|---|
3902985 | Raetzsch et al. | Sep 1975 | |
4057474 | Kurtz et al. | Nov 1977 | |
4181587 | Kurtz | Jan 1980 | |
4197179 | Ezzell et al. | Apr 1980 |
Number | Date | Country |
---|---|---|
955349 | Feb 1961 | GBX |
1218268 | Jan 1971 | GBX |
1305212 | Jan 1973 | GBX |
1487995 | Oct 1977 | GBX |
1491937 | Nov 1977 | GBX |
11488 | May 1981 | EUR |
Entry |
---|
"Hypochlorate Generator For Treatment of Combined Sewer Overflows" for E.P.A. by Ionics Inc., 3/1972. |