Arrangement of monitoring devices; Arrangement of safety devices

Introduced: September 1968

CPC subdivides this area 5x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

Child Classifications

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F27D 2021/0007 2nd only CPC only CPC only
F27D 2021/005 2nd only CPC only CPC only
F27D 2021/0057 2nd only +5 CPC CPC only CPC only
F27D 21/0014 CPC only CPC only
F27D 21/0021 CPC only CPC only
F27D 21/0028 CPC only CPC only
F27D 21/0035 +1 CPC CPC only CPC only
F27D 21/02 Observation or illuminating devices +2 CPC IPC+CPC Available in IPC and CPC
F27D 21/04 Arrangement of indicators or alarms IPC+CPC Available in IPC and CPC