1975-06-23
1976-09-21
Grieb, Wm. H.
35 22R, G09B 704
Patent
active
039810879
ABSTRACT:
A teaching machine adapted to take account of the student's ability and progress operates with programmed cards and includes three stacking means, controlled conveyor means, display means and a student input means, such as a keyboard.
REFERENCES:
patent: 2564089 (1951-08-01), Williams et al.
patent: 2965975 (1960-12-01), Briggs
patent: 3142909 (1964-08-01), Irazoqui
patent: 3195533 (1965-07-01), Fischer
patent: 3221418 (1965-12-01), Hoernes
patent: 3357115 (1967-12-01), Kelley
patent: 3725899 (1973-04-01), Gruebel
Gerber Eliot S.
Grieb Wm. H.
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