Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 178/64
Name: Telegraphy > Systems > Coil transformer
Description: Systems for transmitting messages by induced currents having an induction-coil or transformer, usually with its primary in a local circuit, with the transmitter and its secondary in the main line; also includes systems utilizing induction-coils or transformers between sections of the main line.

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Vehicle display system or projection display for a motor vehicle, and calibration method
Rear bumper for an automobile
Carrying case
Digital broadcast receiver and method for processing caption thereof
Process to increase selectivity to ethylene in oxygenates-to-olefins conversions
Inductive antenna coupling
  Randomly Featured Patents
Hindered amine light stabilizer, methods of making, and compositions
Measurement of small movements
Method of reducing spurious signal generation in passive microwave components
Simple passive/active proximity warning system
Method for recovering metal from waste stream
Magnetic support supporting a notepad and for mounting a business card
Liquid crystal display device and method for manufacturing the same
Hydrophobic catalytic materials and method of forming the same
Installation assemblies for pipeline liners, pipeline liners and methods for installing the same
Radio system, radio base station and radio terminal