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| All Patents in class 210/259 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,510,890 | May 12, 1970 | M.R. Estabrook | Drycleaning and fluid decontamination apparatus and method | ||
| 4,110,218 | Aug. 29, 1978 | M. Roger, M.R. Estabrook | Liquid cleaning apparatus having cyclonic separators | separators | |