Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 178/106
Name: Telegraphy > Keys > Shifting contact point
Description: Telegraph keys having one or more of the contacts movable or revoluble, so that the points of contact may be renewed when they are roughened or burned by heavy currents or use.










Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
  Recently Added Patents
Washing machine
System of providing an internet web site that assists medical professionals draft a letter of medical necessity or other documentation for transmission to a third party payer on behalf of a pa
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
Lubricating oil with enhanced protection against wear and corrosion
Method and device for surface scanning of a patient
Pyridyldiamido transition metal complexes, production and use thereof
Avirulent oncolytic herpes simplex virus strains engineered to counter the innate host response
  Randomly Featured Patents
Indicator
Digital computing system having auto-incrementing memory
Multiple-frequency common antenna
Method and apparatus for auto-tuning of a radio fm-receiver
Flower shape night light
Transfer device for applying labels to blow molds
System and method for packaging of fresh produce incorporating modified atmosphere packaging
Sealing boot
Seat or similar unit of furniture
Anti-human MP52 monoclonal antibody