BE434755A - - Google Patents

Info

Publication number
BE434755A
BE434755A BE434755DA BE434755A BE 434755 A BE434755 A BE 434755A BE 434755D A BE434755D A BE 434755DA BE 434755 A BE434755 A BE 434755A
Authority
BE
Belgium
Prior art keywords
drum
generators
pins
drums
signs
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE434755A publication Critical patent/BE434755A/fr

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09CCIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C3/00Typewriters for ciphering or deciphering cryptographic text
    • G09C3/04Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
    • G09C3/06Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member the connections being mechanical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
BE434755D BE434755A (de)

Publications (1)

Publication Number Publication Date
BE434755A true BE434755A (de)

Family

ID=93825

Family Applications (1)

Application Number Title Priority Date Filing Date
BE434755D BE434755A (de)

Country Status (1)

Country Link
BE (1) BE434755A (de)

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