Magnetic blocks

Details Magnetic blocks Magnetic blocks

1998-11-06

2000-02-15

Hafer, Robert A.

Amusement devices: toys

Construction toy

Including permanent magnet or suction cup to secure elements

446128, 446 85, 446124, A63H 3304

Patent

active

06024626&

ABSTRACT:
A magnetic block including an upper face and a lower face and side faces therebetween and a plurality of magnets located within the blocks.

REFERENCES:
patent: 1430557 (1922-10-01), Jervis
patent: 2795893 (1957-06-01), Vayo
patent: 2872754 (1959-02-01), Cronberger
patent: 3095668 (1963-07-01), Dorsett
patent: 3184882 (1965-05-01), Vega
patent: 3254440 (1966-06-01), Duggar
patent: 5203706 (1993-04-01), Zamir
patent: 5746638 (1998-05-01), Shiraishi

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