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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37/00
Component parts or details of steam boilers
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F22B37/62
specially adapted for steam boilers of forced-flow type
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F22B37/64
Mounting of, or supporting arrangements for, tube units
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F22B37/66
involving vertically-disposed water tubes
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