Title:
Magnetic toy building blocks
United States Patent 3254440

Inventors:
Duggar, Robert G.
Publication Date:
06/07/1966
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Assignee:
Duggar, Robert G.
Primary Class:
446/92
Other Classes:
428/900, 52/604, 52/578, 24/303, 52/DIG.004
International Classes:
A63H33/04
US Patent References:
2578709Flexible laminated trim panel
2648157Magnetic wand actuated toy
2795893Magnetic toy blocks
2939243Magnetic toy building blocks
2973294Fan-shaped honeycomb and method of making same
3034320Magnetic earring construction including means to concentrate the magnetic force