Patent Classification Explorer PCE

DIFF Main Group

G05D 23/00

Control of temperature

Introduced: September 1968

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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G05D 23/01 without auxiliary power +1 CPC IPC+CPC Available in IPC and CPC
G05D 23/185 with auxiliary non-electric power +4 CPC IPC+CPC Available in IPC and CPC
G05D 23/19 characterised by the use of electric means +7 CPC IPC+CPC Available in IPC and CPC