Electronic teaching unit

Details Electronic teaching unit Electronic teaching unit

1979-06-15

1981-11-10

Feifer, Melvin B.

Office supplies; artists and teachers materials

Teaching material

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

D18 7, D1908

Patent

active

D02617765

REFERENCES:
patent: D213003 (1968-12-01), Sellers
patent: D237608 (1975-11-01), Dean et al.
patent: D247441 (1978-03-01), Kroll

Affiliated with

Also associated with

Rating

Electronic teaching unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic teaching unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic teaching unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2356437