Number | Date | Country | Kind |
---|---|---|---|
54-80188 | Jun 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2379554 | Tyler | Jul 1945 | |
3211167 | Clift et al. | Oct 1965 | |
3478884 | McPherson et al. | Nov 1969 |
Entry |
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Perkins P. R.; "An Introduction to Computers in Process Control", found in, Progress in Water Technology; vol. 6 pp. 424-431 (1974). |
Wells B. W.; "An Application Study of Computer Control for Sewage Treatment" in Progress in Water Technology; vol. 6 pp. 405-416 (1974). |