F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F28 HEAT EXCHANGE IN GENERAL
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F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
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F28D21/00 Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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F28D2021/0019 Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
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F28D2021/008 for vehicles
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F28D2021/0084 Condensers
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