• All sections
• G - Physics
• G09C - Ciphering or deciphering apparatus for cryptographic or other purposes involving the need for secrecy
• G09C 1/06 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member

Patent holdings for IPC class G09C 1/06

Total number of patents in this class: 14

10-year publication summary

Principal owners for this class