CPC Main Group
F22B 35/00 Control systems for steam boilers (for regulating feed-water supply F22D5/00; for controlling superheat temperature F22G5/00)
9 direct subcodes
Child Classifications
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- F22B 35/02 for steam boilers with natural convection circulation
- F22B 35/06 for steam boilers of forced-flow type
- F22B 35/18 Applications of computers to steam-boiler control