Education and demonstration – Language – Alphabet letter formation – recognition – or sequencing
Patent
1988-05-23
1989-07-11
Grieb, William H.
Education and demonstration
Language
Alphabet letter formation, recognition, or sequencing
434172, 434184, 434193, 434200, 434259, G09B 106
Patent
active
048466921
ABSTRACT:
A toy adapted to instruct young children by association. The toy teaches proper numeric, alphabetic, or color sequences and the standard left to right reading convention, by utilizing blocks that are inserted into shafts in a stand. Blocks inserted out of proper sequence will fall through the stand but passage of blocks inserted in the proper sequence will be obstructed and those blocks will not fall through but will remain supported within the stand.
REFERENCES:
patent: 264066 (1882-09-01), Crandall
patent: 2415342 (1947-02-01), Donner
patent: 2839842 (1958-06-01), Keyko
patent: 2861358 (1958-11-01), Ward
patent: 3346968 (1967-10-01), Dellinger
patent: 4188734 (1980-02-01), Rich
patent: 4427390 (1984-01-01), Manger
patent: 4509920 (1985-04-01), Kaufmann
Grieb William H.
Matthews Guy E.
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