Manipulative toy

Details Manipulative toy Manipulative toy

1980-03-31

1982-04-20

Grieb, William H.

Amusement devices: games

Puzzles

Jumping movement

434211, A63F 908, G09B 2304

Patent

active

043255523

ABSTRACT:
A manipulative toy comprising a number of spheres serially attached in a closed loop or open chain, each sphere being attached to the next at a fixed point on its surface by a connector which allows relative rotation of adjacent spheres about a common axis through their centres.

REFERENCES:
patent: 2942356 (1960-06-01), Weintraub
patent: 3091870 (1963-06-01), Sangster
patent: 3837652 (1974-09-01), Kuwagaki et al.
patent: 3945645 (1976-03-01), Roberts
patent: 4060247 (1977-11-01), Kobres

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