BE436532A - - Google Patents

Info

Publication number
BE436532A
BE436532A BE436532DA BE436532A BE 436532 A BE436532 A BE 436532A BE 436532D A BE436532D A BE 436532DA BE 436532 A BE436532 A BE 436532A
Authority
BE
Belgium
Prior art keywords
holes
sheet
sheets
writing
carrying
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE436532A publication Critical patent/BE436532A/fr

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09CCIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00Apparatus 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
    • G09C1/04Apparatus 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 with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
BE436532D BE436532A (OSRAM)

Publications (1)

Publication Number Publication Date
BE436532A true BE436532A (OSRAM)

Family

ID=95182

Family Applications (1)

Application Number Title Priority Date Filing Date
BE436532D BE436532A (OSRAM)

Country Status (1)

Country Link
BE (1) BE436532A (OSRAM)

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