Patent Classification Explorer PCE

DIFF Main Group

F24H 3/00

Air heaters

Introduced: September 1968

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

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F24H 3/002 +1 CPC CPC only CPC only
F24H 3/006 CPC only CPC only
F24H 3/008 CPC only CPC only
F24H 3/02 with forced circulation +3 CPC IPC+CPC Available in IPC and CPC
F24H 3/12 with additional heating arrangements IPC+CPC Available in IPC and CPC