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Class Information
Number: 330/186
Name: Amplifiers > Input networks > To cathode
Description: Subject matter wherein the input signal is coupled to the cathode of a vacuum tube amplifying device.

Sub-classes under this class:

Class Number	Class Name	Patents
330/187	D.c. coupled	1

Patents under this class:

Patent Number	Title Of Patent	Date Issued
4471316	Electric oscillation generator	Sep. 11, 1984

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