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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19/00
Combinations of different kinds of furnaces that are not all covered by any single one of main groups F27B1/00 - F27B17/00
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F27B19/04
arranged for associated working
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