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PCE
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DIFF Subgroup
H01F 27/20

Cooling by special gases or non-ambient air

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of transformers or inductances, in general > Cooling; Ventilating > Cooling by special gases or non-ambient air

CPC:

Details of transformers or inductances, in general > Cooling (heat-transfer elements F28F); Ventilating (structural details of casings H01F27/02) > Cooling by special gases or non-ambient air

No child classifications to compare. This is a leaf node in both IPC and CPC.