Optical construction toy

Details Optical construction toy Optical construction toy

1990-02-06

1991-07-09

Hafer, Robert A.

Amusement devices: toys

Construction toy

Interfitting elements

446108, 446219, 350507, 350 962, 350 9615, A63H 3308

Patent

active

050301586

ABSTRACT:
An optical construction toy assembly including modular optical apparatus having optical power and construction apparatus for permitting selectable arrangement of the modular optical apparatus having optical power to selectably define a plurality of different optical devices.

REFERENCES:
patent: 1521339 (1924-12-01), Taylor
patent: 1889284 (1931-01-01), Hankel
patent: 3535817 (1967-02-01), Fischer
patent: 4132028 (1979-01-01), Ogawa
patent: 4911673 (1990-03-01), Hollowell

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