Resources Contact Us Home
Electronic device providing automatic permutations of a Vigenere Square

Image Number 8 for United States Patent #4675477.

This invention relates to cryptographic teletypewriter systems and more picularly to an electronic device for use in such systems which automatically provides permutations of a Vigenere Square.

  Recently Added Patents
Electrode structure and its manufacturing method, and semiconductor module
Frothable aqueous composition for use in a carpet backing composition
Error recovery storage along a memory string
Silicone hydrogel, lens for eye and contact lens
Micro-fluidic device
Sabatier process and apparatus for controlling exothermic reaction
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
  Randomly Featured Patents
Method for producing reinforced insulating foam
Reversing gearset of a continuously variable transmission in particular a continuously variable belt transmission
A process for removing corrosive by-products from a circuit assembly
Convertible walking and riding device and method of using the same
Programmable metallization cell with ion buffer layer
Alkoxysilane cluster emulsions and their preparation
Mounting structure for a part provided to an enclosure of an in-wheel motor
Process and apparatus for assembling filter holders for use in a smoking machine
Horizontal oscillating treating barrel apparatus
Apparatus for cutting hollow pipe