Education and demonstration – Occupation – Electricity or electronics
Patent
1986-02-20
1987-09-29
Picard, Leo P.
Education and demonstration
Occupation
Electricity or electronics
G09B 1900
Patent
active
046966471
ABSTRACT:
An apparatus designed to have a pre-wired base plate with various openings for insertion of blocks containing components. Upon insertion of the blocks in the proper openings of the base plate the total assembly may be used as a calculator, radio, intercom, clock or other electronic toy device depending upon the base plate and the placement of the block containing components.
REFERENCES:
patent: 3447249 (1969-06-01), Greger
patent: 3576936 (1971-05-01), Fischer
patent: 4376538 (1983-03-01), Keenan
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