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PCE
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CPC Subgroup
H03D 3/26

by means of sloping amplitude/frequency characteristic of tuned or reactive circuit (H03D3/28 - H03D3/32 takes precedence)

Full Title

Demodulation of angle-, modulated oscillations (H03D5/00, H03D9/00, H03D11/00 take precedence) > by means of sloping amplitude/frequency characteristic of tuned or reactive circuit (H03D3/28 - H03D3/32 takes precedence)