BE696874A - - Google Patents

Info

Publication number
BE696874A
BE696874A BE696874DA BE696874A BE 696874 A BE696874 A BE 696874A BE 696874D A BE696874D A BE 696874DA BE 696874 A BE696874 A BE 696874A
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 BE696874A publication Critical patent/BE696874A/xx

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/04Electrically-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)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
BE696874D 1966-12-09 1967-04-11 BE696874A (mo)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60062766A 1966-12-09 1966-12-09

Publications (1)

Publication Number Publication Date
BE696874A true BE696874A (mo) 1967-09-18

Family

ID=24404378

Family Applications (1)

Application Number Title Priority Date Filing Date
BE696874D BE696874A (mo) 1966-12-09 1967-04-11

Country Status (5)

Country Link
BE (1) BE696874A (mo)
CH (1) CH461151A (mo)
DE (1) DE1547492A1 (mo)
ES (1) ES339019A1 (mo)
GB (1) GB1160464A (mo)

Also Published As

Publication number Publication date
CH461151A (de) 1968-08-15
DE1547492A1 (de) 1969-11-06
GB1160464A (en) 1969-08-06
ES339019A1 (es) 1968-04-16

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