Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F27
FURNACES; KILNS; OVENS; RETORTS
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F27D
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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25/00
Devices; or methods; for removing incrustations; , e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
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F27D25/001
comprising breaking tools, e.g. hammers, drills, scrapers
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