GB1229214A - - Google Patents

Info

Publication number
GB1229214A
GB1229214A GB1229214DA GB1229214A GB 1229214 A GB1229214 A GB 1229214A GB 1229214D A GB1229214D A GB 1229214DA GB 1229214 A GB1229214 A GB 1229214A
Authority
GB
United Kingdom
Prior art keywords
pupil
projected
lever
answer
levers
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
English (en)
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 GB1229214A publication Critical patent/GB1229214A/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
    • G09B3/00—Manually or mechanically operated teaching appliances working with questions and answers
    • G09B3/06—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made

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)
  • Collation Of Sheets And Webs (AREA)
  • Projection-Type Copiers In General (AREA)
GB1229214D 1967-05-19 1967-05-19 Expired GB1229214A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2335867 1967-05-19

Publications (1)

Publication Number Publication Date
GB1229214A true GB1229214A (enExample) 1971-04-21

Family

ID=10194368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229214D Expired GB1229214A (enExample) 1967-05-19 1967-05-19

Country Status (1)

Country Link
GB (1) GB1229214A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4855020A (enExample) * 1971-11-15 1973-08-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4855020A (enExample) * 1971-11-15 1973-08-02

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GB1229214A (enExample)
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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees