CPC Main Group
F28F 19/00 Preventing the formation of deposits or corrosion, e.g. by using filters
6 direct subcodes
Child Classifications
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- F28F 19/01 by using means for separating solid materials from heat-exchange fluids, e.g. filters
- F28F 19/02 by using coatings, e.g. vitreous or enamel coatings