Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
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
8105928 Graphene based switching device having a tunable bandgap Jan. 31, 2012
4471316 Electric oscillation generator Sep. 11, 1984

  Recently Added Patents
Preserving and handling native data in hybrid object trees
Encoder that detects positional information of a moving body generating interference fringes that move in opposite directions
Bull stationery tab
Anti-slip strip for vehicle running boards
Programming of DIMM termination resistance values
Optical scanner and image-forming device
  Randomly Featured Patents
Interrupt signal processing apparatus
Layered chip for use in soldering
Meta-document management system with user definable personalities
Planar thin film magnetic head
Electronic sound effect assembly for use on a sport's goal net
Apparatus for transporting a motor vehicle in a parking system
Resynchronization method and apparatus for local memory buffers management for an ATM adapter implementing credit based flow control
Heat dissipating plasma display device
Method for detecting amines and aldehydes using lanthanide chelate fluorophores based on dihydropyridine condensation products
Bar code detecting circuitry