CPC Main Group
F22B 37/00 Component parts or details of steam boilers
8 direct subcodes
Child Classifications
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- F22B 37/02 applicable to more than one kind or type of steam boiler
- F22B 37/60 specially adapted for steam boilers of instantaneous or flash type
- F22B 37/62 specially adapted for steam boilers of forced-flow type
- F22B 37/76 Adaptations or mounting of devices for observing existence or direction of fluid flow
- F22B 37/78 Adaptations or mounting of level indicators