Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F22
STEAM GENERATION
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F22B
METHODS OF STEAM GENERATION; STEAM BOILERS
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7/00
Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
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F22B7/12
with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
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