DIFF Subgroup
H03F 3/45 Differential amplifiers (differential sense amplifiers G11C7/062)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Differential amplifiers
CPC: Differential amplifiers (differential sense amplifiers G11C7/062)
Full Title
Full titles differ between systems:
IPC:
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Differential amplifiers
CPC:
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Differential amplifiers (differential sense amplifiers G11C7/062)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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