H03F3/3455 - CPC Classification Index

ClassID:

219310 ⎘

H03F3/3455 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Dc amplifiers in which all stages are dc-coupled with semiconductor devices only with field-effect devices with junction-FET's

Recent Application in this class:

20180152147

2018-05-31

AN ULTRA-LOW-POWER AND LOW-NOISE AMPLIFIER

20160013766

2016-01-14

Linear FET feedback amplifier