Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F24
HEATING; RANGES; VENTILATING
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F24S
SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
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20/00
Solar heat collectors specially adapted for particular uses or environments
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F24S20/60
Solar heat collectors integrated in fixed constructions, e.g. in buildings
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F24S20/69
in the form of shingles or tiles
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