Pressey teaching machine (Q650): Difference between revisions

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Created a new Item: Pressey teaching machine
 
Merged Item from Q7730
Property / subclass of
 
Property / subclass of: teaching machine / rank
 
Normal rank
Property / discoverer or inventor
 
Property / discoverer or inventor: Sidney L. Pressey / rank
 
Normal rank

Revision as of 17:19, 11 June 2026

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English
Pressey teaching machine
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