Student-programmable educational instrumentation device

Details Student-programmable educational instrumentation device Student-programmable educational instrumentation device

1976-05-07

1978-02-28

Feifer, Melvin B.

Office supplies; artists and teachers materials

Teaching material

Sensory feedback, e.g., audio-visual teaching machine

D1907

Patent

active

D02473631

REFERENCES:
patent: D201885 (1965-08-01), Pezely, Jr. et al.
patent: 3982764 (1976-09-01), Dieball

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