Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F28
HEAT EXCHANGE IN GENERAL
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F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
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19/00
Preventing the formation of deposits or corrosion, e.g. by using filters; or scrapers
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F28F19/02
by using coatings, e.g. vitreous or enamel coatings
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