Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Biometric data display system and method
Light-emitting device package and method of manufacturing the same
Taxi cab key chain
Stabilized redispersible polymer powder compositions
Data latch circuit and electronic device
Cosmetic product including vegetable oil blend
Blur correction device and imaging apparatus
  Randomly Featured Patents
Television tuning system
Oval promotional display
Adobe wall construction
Sole-support plate for ski bindings
Electromagnetic field measuring technique to assess shielding effectiveness
Refastenable absorbent article and a method of applying thereof
Preparation of catalyst composition comprising a boron containing crystalline material having the structure of zeolites ZSM-5, ZSM-11, ZSM-12, Beta or Nu-1
Aqueous biopolymer-containing labeling adhesive
Sound processing apparatus, sound processing method, sound processing program and recording medium which records sound processing program
Making directional measurements using a rotating and non-rotating drilling apparatus