FR861862A - Perfectionnements aux machines à chiffrer - Google Patents

Perfectionnements aux machines à chiffrer

Info

Publication number
FR861862A
FR861862A FR861862DA FR861862A FR 861862 A FR861862 A FR 861862A FR 861862D A FR861862D A FR 861862DA FR 861862 A FR861862 A FR 861862A
Authority
FR
France
Prior art keywords
encryption machines
encryption
machines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Boris Caesar Wilhelm Hagelin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR861862A publication Critical patent/FR861862A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C3/00—Typewriters for ciphering or deciphering cryptographic text
    • G09C3/04—Typewriters 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
    • G09C3/06—Typewriters 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)
  • Handling Of Sheets (AREA)
  • Common Mechanisms (AREA)
  • Transmission Devices (AREA)
FR861862D 1938-11-12 1939-11-24 Perfectionnements aux machines à chiffrer Expired FR861862A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE538473X 1938-11-12
FR861862T 1939-11-24

Publications (1)

Publication Number Publication Date
FR861862A true FR861862A (fr) 1941-02-26

Family

ID=20311539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR861862D Expired FR861862A (fr) 1938-11-12 1939-11-24 Perfectionnements aux machines à chiffrer

Country Status (3)

Country Link
US (1) US2247170A (fr)
FR (1) FR861862A (fr)
GB (1) GB538473A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499407A (en) * 1945-03-29 1950-03-07 Bruce K Newman Attachment for converters
US3000486A (en) * 1953-04-16 1961-09-19 Edward J Yeo Ciphering machine
US3349882A (en) * 1966-05-17 1967-10-31 Transvertex Ab Ciphering machine
US3362516A (en) * 1966-07-19 1968-01-09 Clary Corp Variable line spacing mechanism

Also Published As

Publication number Publication date
US2247170A (en) 1941-06-24
GB538473A (en) 1941-08-06

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