Study device

Details Study device Study device

1979-12-10

1981-04-21

Grieb, William H.

Education and demonstration

Language

Alphabet letter formation, recognition, or sequencing

434348, G09B 106

Patent

active

042624320

ABSTRACT:
A study device for teaching children or other users predetermined study items, such as letters of the alphabet, in response to depressing desired ones of a plurality of push-plate operating portions. The study device includes a casing having a plurality of study elements provided in horizontal rows and vertical columns. Each study element includes an indication plate having an indication surface formed on the upper surface thereof, and a push-plate disposed below the indication plate, the push-plate including a resiliently supported operating portion. When the operating portion of a particular push-plate is depressed by the child, the indication plate will rotate to stand upright. One resilient member resiliently supports a plurality of the operating portions of the push-plates.

REFERENCES:
patent: 958781 (1910-05-01), Spencer
patent: 1385256 (1921-07-01), McCann
patent: 1469750 (1923-10-01), Yelf
patent: 3587178 (1971-06-01), Kojima

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