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DIFF Subgroup
H03B 5/24

active element in amplifier being semiconductor device (H03B5/26 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: active element in amplifier being semiconductor device

CPC: active element in amplifier being semiconductor device (H03B5/26 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Generation of oscillations using amplifier with regenerative feedback from output to input > with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator > active element in amplifier being semiconductor device

CPC:

Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator > active element in amplifier being semiconductor device (H03B5/26 takes precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.