GB310040A - Improvements in ciphering apparatus - Google Patents

Improvements in ciphering apparatus

Info

Publication number
GB310040A
GB310040A GB11844/29A GB1184429A GB310040A GB 310040 A GB310040 A GB 310040A GB 11844/29 A GB11844/29 A GB 11844/29A GB 1184429 A GB1184429 A GB 1184429A GB 310040 A GB310040 A GB 310040A
Authority
GB
United Kingdom
Prior art keywords
ciphering apparatus
ciphering
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
GB11844/29A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRYPTOGRAPH AB
Original Assignee
CRYPTOGRAPH AB
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 by CRYPTOGRAPH AB filed Critical CRYPTOGRAPH AB
Publication of GB310040A publication Critical patent/GB310040A/en
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
    • G09C3/08—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 electrical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
GB11844/29A 1928-04-21 1929-04-16 Improvements in ciphering apparatus Expired GB310040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE310040X 1928-04-21

Publications (1)

Publication Number Publication Date
GB310040A true GB310040A (en) 1930-03-20

Family

ID=20307614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11844/29A Expired GB310040A (en) 1928-04-21 1929-04-16 Improvements in ciphering apparatus

Country Status (2)

Country Link
US (1) US1846105A (en)
GB (1) GB310040A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349882A (en) * 1966-05-17 1967-10-31 Transvertex Ab Ciphering machine

Also Published As

Publication number Publication date
US1846105A (en) 1932-02-23

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