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| All Patents in class 210/416.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,541,202 | Feb. 13, 1951 | H.J. Caldwell | Apparatus for removing entrained particles from liquid coolant | ||
| 4,950,392 | Aug. 21, 1990 | M.D. Tiegs, R.D. Liegel | Filtration tank for filtering waste water used in washing mechanical components | ||