1981-04-20
1982-03-16
Peshock, Robert
46 44, 46124, A63H 3326
Patent
active
043194273
ABSTRACT:
An apparatus, particularly adapted for use as a toy, advances itself in steps over a ferromagnetic surface utilizing a mechanically actuated structure on which relatively movable permanent magnets and magnet shields are mounted.
REFERENCES:
patent: 2618889 (1952-11-01), Wigal
patent: 2895429 (1959-07-01), Baermann
patent: 3490172 (1970-01-01), Schwartz
Olive B. B.
Peshock Robert
Yu Mickey
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