Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F27
FURNACES; KILNS; OVENS; RETORTS
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F27B
FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
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3/00
Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces; ; Tank furnaces
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F27B3/06
with movable working chambers or hearths, e.g. tiltable; , oscillating or describing a composed movement
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