DIFF Subgroup
F22B 35/08 of forced-circulation type
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Control systems for steam boilers > for steam boilers of forced-flow type > of forced-circulation type
CPC:
Control systems for steam boilers (for regulating feed-water supply F22D5/00; for controlling superheat temperature F22G5/00) > for steam boilers of forced-flow type > of forced-circulation type
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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