DIFF Subgroup
G04B 17/22 for the effect of variations of temperature
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Mechanisms for stabilising frequency > Compensation of mechanisms for stabilizing frequency > for the effect of variations of temperature
CPC:
Mechanisms for stabilising frequency > Compensation of mechanisms for stabilising frequency > for the effect of variations of temperature
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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