GB271955A - Improvements in or relating to coding and de-coding machines and to code-changing devices therefor - Google Patents

Improvements in or relating to coding and de-coding machines and to code-changing devices therefor

Info

Publication number
GB271955A
GB271955A GB621226A GB621226A GB271955A GB 271955 A GB271955 A GB 271955A GB 621226 A GB621226 A GB 621226A GB 621226 A GB621226 A GB 621226A GB 271955 A GB271955 A GB 271955A
Authority
GB
United Kingdom
Prior art keywords
racks
discs
pawls
typewriter
tubes
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
GB621226A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority to BE341014D priority Critical patent/BE341014A/xx
Application filed by Individual filed Critical Individual
Priority to GB621226A priority patent/GB271955A/en
Priority to FR629979D priority patent/FR629979A/fr
Publication of GB271955A publication Critical patent/GB271955A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
GB621226A 1926-03-05 1926-03-05 Improvements in or relating to coding and de-coding machines and to code-changing devices therefor Expired GB271955A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE341014D BE341014A (enrdf_load_stackoverflow) 1926-03-05
GB621226A GB271955A (en) 1926-03-05 1926-03-05 Improvements in or relating to coding and de-coding machines and to code-changing devices therefor
FR629979D FR629979A (fr) 1926-03-05 1927-03-01 Perfectionnements aux appareils de chiffrage et de déchiffrage, et aux dispositifs de changement de code pour ces appareils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB621226A GB271955A (en) 1926-03-05 1926-03-05 Improvements in or relating to coding and de-coding machines and to code-changing devices therefor

Publications (1)

Publication Number Publication Date
GB271955A true GB271955A (en) 1927-06-07

Family

ID=9810452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB621226A Expired GB271955A (en) 1926-03-05 1926-03-05 Improvements in or relating to coding and de-coding machines and to code-changing devices therefor

Country Status (3)

Country Link
BE (1) BE341014A (enrdf_load_stackoverflow)
FR (1) FR629979A (enrdf_load_stackoverflow)
GB (1) GB271955A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE341014A (enrdf_load_stackoverflow)
FR629979A (fr) 1927-11-21

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