Magnetic display

Details Magnetic display Magnetic display

1976-07-02

1978-02-28

Sikes, William L.

G02F 136

Patent

active

040763870

ABSTRACT:
A magnetic display comprising, between two magnetic field permeable substrates, a ferrofluid and metal flakes, one of the substrates being provided with one or more selectively energizable electro-magnets.

REFERENCES:
patent: 3531185 (1970-09-01), Buchsbaum et al.
patent: 3788729 (1974-01-01), Lowell et al.
patent: 3876288 (1975-04-01), Iwata et al.

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