Learning toy

Details Learning toy Learning toy

1992-09-15

1994-01-11

Mancene, Gene

Education and demonstration

Question or problem eliciting response

Correctness of response indicated to examine by...

434191, 434199, 434327, 40447, G09B 300

Patent

active

052775879

ABSTRACT:
A learning device including a holder having a storage area and a display area. Information cards including a problem and a coded solution are selectively introduced into the display area wherein the problem remains visible and the coded answer is viewed through one or more specifically configured openings which combine with the coded answer to provide a deciphered or readable answer.

REFERENCES:
patent: 1666337 (1928-04-01), McDade
patent: 2693646 (1954-11-01), Hawkins
patent: 3154863 (1964-11-01), La Prelle
patent: 3359651 (1967-12-01), Mair
patent: 3535796 (1970-10-01), Dean
patent: 3714721 (1973-02-01), Tilley
patent: 3828720 (1974-08-01), Herst
patent: 4307534 (1981-12-01), Tomita
patent: 4728294 (1988-03-01), Bredehorn
patent: 4770638 (1988-09-01), Jabour et al.
patent: 4836783 (1989-06-01), Harper
patent: 4921427 (1990-05-01), Dunn

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