H03G9/20 - CPC Classification Index

ClassID:

220312 ⎘

H03G9/20 - CPC Classification

Classification description:

Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers

Sub-classes:

H03G9/22 » having discharge tubes 1
H03G9/24 » having semiconductor devices 24

Recent Application in this class:

20180026599

Compressor system with EQ

14075759

Audio limiter system and method