Color toy device

Details Color toy device Color toy device

1975-12-22

1977-05-31

Skogquist, Harland S.

35 77, 46 49, G09B 102

Patent

active

040260429

ABSTRACT:
A color toy device with an elongated base having an upright wall at each end thereof:

REFERENCES:
patent: 488625 (1892-12-01), Clark
patent: 537887 (1895-04-01), Bradley
patent: 838305 (1906-12-01), Curial
patent: 853756 (1907-05-01), Betis
patent: 894654 (1908-07-01), Ives
patent: 1600609 (1926-09-01), Wendler
patent: 2631405 (1953-03-01), Masten
patent: 2779129 (1957-01-01), Reyher
patent: 2794644 (1957-06-01), Johnson
patent: 3184864 (1965-05-01), Johnson
patent: 3278182 (1966-10-01), Lescher
patent: 3809785 (1974-05-01), Calabrese

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