BE731374A - - Google Patents

Info

Publication number
BE731374A
BE731374A BE731374DA BE731374A BE 731374 A BE731374 A BE 731374A BE 731374D A BE731374D A BE 731374DA BE 731374 A BE731374 A BE 731374A
Authority
BE
Belgium
Application number
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
Publication of BE731374A publication Critical patent/BE731374A/xx

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
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electrically Operated Instructional Devices (AREA)
BE731374D 1969-04-11 1969-04-11 BE731374A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE731374 1969-04-11

Publications (1)

Publication Number Publication Date
BE731374A true BE731374A (enrdf_load_html_response) 1969-10-13

Family

ID=3854588

Family Applications (1)

Application Number Title Priority Date Filing Date
BE731374D BE731374A (enrdf_load_html_response) 1969-04-11 1969-04-11

Country Status (2)

Country Link
BE (1) BE731374A (enrdf_load_html_response)
GB (1) GB1256213A (enrdf_load_html_response)

Also Published As

Publication number Publication date
GB1256213A (en) 1971-12-08

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