DIFF Main Group
F22B 37/00 Component parts or details of steam boilers
Introduced: September 1968
Of 8 combined children, 5 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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- F22B 37/02 applicable to more than one kind or type of steam boiler +1 CPC IPC+CPC Available in IPC and CPC
- F22B 37/60 specially adapted for steam boilers of instantaneous or flash type IPC+CPC Available in IPC and CPC
- F22B 37/76 Adaptations or mounting of devices for observing existence or direction of fluid flow IPC+CPC Available in IPC and CPC