Patent classifications
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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15/00
Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls; ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
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F28D15/02
in which the medium condenses and evaporates, e.g. heat pipes
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F28D15/025
having non-capillary condensate return means
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