Patent
1977-04-27
1978-11-07
Skogquist, Harland S.
35 35G, 35 58, G09B 120
Patent
active
041238532
ABSTRACT:
Disclosed is an educational device for dyslexic children which comprises a base, a shaft mounted on the base, a plurality of blocks mounted on the shaft for rotation relative to the base, and a mirror mounted on the base facing the shaft. Mirror-image and/or totally backwards indicia are carried by the blocks on at least one face of each of the blocks, whereby the blocks can be rotated to positions in which the indicia are reflected by the mirror.
REFERENCES:
patent: 853756 (1907-05-01), Betis
patent: 1856650 (1932-05-01), McLintock
patent: 2535474 (1950-12-01), Zerpa
patent: 3562923 (1971-02-01), Chuy
patent: 3726027 (1973-04-01), Cohen
patent: 3742616 (1973-07-01), Heller
patent: 4045884 (1977-09-01), Zand
Definition and Picture of "Cotter" Websters Seventh New Collegiate Dictionary.
Byrne John J.
Skogquist Harland S.
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