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FR674214A - Improvements to development card readers - Google Patents

Improvements to development card readers

Info

Publication number
FR674214A
FR674214A FR674214DA FR674214A FR 674214 A FR674214 A FR 674214A FR 674214D A FR674214D A FR 674214DA FR 674214 A FR674214 A FR 674214A
Authority
FR
France
Prior art keywords
card readers
development card
development
readers
card
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
French (fr)
Inventor
Emile-Felix Marchal
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 FR674214A publication Critical patent/FR674214A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • G09B29/06—Maps; Plans; Charts; Diagrams, e.g. route diagram of belt form, e.g. endless belt

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
FR674214D 1929-04-29 1929-04-29 Improvements to development card readers Expired FR674214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR674214T 1929-04-29

Publications (1)

Publication Number Publication Date
FR674214A true FR674214A (en) 1930-01-24

Family

ID=9018602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR674214D Expired FR674214A (en) 1929-04-29 1929-04-29 Improvements to development card readers

Country Status (1)

Country Link
FR (1) FR674214A (en)

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