Pressey teaching machine (Q7730): Difference between revisions
Espartatuga (talk | contribs) Created a new Item: Pressey teaching machine |
Espartatuga (talk | contribs) Created claim: subclass of (P2): teaching machine (Q7727) |
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Revision as of 17:09, 11 June 2026
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Pressey teaching machine |
No description defined |