Novel educational toy

Details Novel educational toy Novel educational toy

1976-04-02

1977-06-07

Grieb, William H.

G09B 302

Patent

active

040274020

ABSTRACT:
A case and question and answer combination cards having notches in various depths on both longitudinal sides. Question setting and answer setting plates with releasable fixing levers and an indication mechanism is provided on the case. A pair of ropes extend between the card and the question setting and answer setting plates and are connected to the indication mechanism. The ropes are pressed by the plates against both notched sides of the card to determine a correct or incorrect answer in accordance with the depth of the notches. The results are indicated by the indication mechanism.

REFERENCES:
patent: 407128 (1889-07-01), Seyberth
patent: 1629635 (1927-05-01), Parsons
patent: 3603003 (1971-09-01), Ziegler

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