Education and demonstration – Question or problem eliciting response – Correctness of response indicated to examine by...
Patent
1981-04-20
1983-09-13
Grieb, William H.
Education and demonstration
Question or problem eliciting response
Correctness of response indicated to examine by...
434169, G09B 300
Patent
active
044039662
ABSTRACT:
A children's educational device including a user actuable keyboard having a plurality of keys for selecting a drawing or word corresponding to a selected word or drawing on a movable holder and displayed via a display window to achieve an educational or recreational effect.
REFERENCES:
patent: 2855700 (1958-10-01), Rock
patent: 3172214 (1965-03-01), Aberge et al.
patent: 3508349 (1970-04-01), Gilden
patent: 3673712 (1972-07-01), Dacey et al.
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