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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21/00
Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
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F22B21/34
built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
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F22B21/341
Vertical radiation boilers with combustion in the lower part
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