Speed-reading machine

Details Speed-reading machine Speed-reading machine

1985-12-30

1988-05-31

Ansher, Bernard

Office supplies; artists and teachers materials

Teaching material

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

D19 59

Patent

active

D02959860

REFERENCES:
patent: D155718 (1949-10-01), Lewis
patent: D239444 (1976-04-01), Dymond
patent: 2632258 (1953-03-01), Erickson
patent: 2782528 (1957-02-01), Wastl
patent: 3161969 (1964-12-01), Schaill
patent: 3248805 (1966-05-01), Alper et al.

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