Educational playset

Details Educational playset Educational playset

1984-02-13

1985-07-16

Grieb, William H.

Education and demonstration

Language

Spelling, phonics, word recognition, or sentence formation

273157R, 434172, 446101, 446117, 446125, 446127, G09B 0000

Patent

active

045293856

ABSTRACT:
A system of interlocking keyed play pieces is adapted for receiving and displaying indicia bearing tile members. Each of the play pieces is provided with a display window through which the tiles may be viewed. The pieces may be interconnected both laterally and longitudinally to enable a child to interconnect the play pieces in an infinite number of combinations so as to form a multitude of structures of varying configurations.

REFERENCES:
patent: 171884 (1876-01-01), Taylor
patent: 176144 (1876-04-01), McDougall
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patent: 2680306 (1954-06-01), Moyer
patent: 2723124 (1955-11-01), Martin
patent: 2932518 (1957-12-01), Burros
patent: 3137967 (1964-06-01), Flieth
patent: 3212201 (1965-10-01), Jensen
patent: 4003144 (1977-01-01), Maddestra et al.
patent: 4136480 (1979-01-01), Fabricant
patent: 4165077 (1979-08-01), Falcione
patent: 4345762 (1982-08-01), Lebelson

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