Wall-hanging type magnetic displaying device

Details Wall-hanging type magnetic displaying device Wall-hanging type magnetic displaying device

1979-10-11

1981-09-15

Mancene, Gene

Card, picture, or sign exhibiting

Display device with magnetically moved object

40449, 46240, 434409, G09F 1900

Patent

active

042889367

ABSTRACT:
A magnetic displaying device adapted for hanging on a wall including a displaying panel made of a hanging panel and a parallel disposed magnetic displaying panel between which is disposed a liquid containing magnetic particles. A translatable erasing magnet is arranged perpendicular to the downward direction of the device and coupled to a magnet lifting mechanism. The erasing magnet rests at either the upper or lower end of the panel and moves up and down through guiding means such as rails. A string or the like coupled to the lifting mechanism is pulled downwardly to move the erasing magnet.

REFERENCES:
patent: 3460276 (1969-08-01), Payne
patent: 3509644 (1970-05-01), Santell et al.
patent: 3591939 (1971-07-01), Payne
patent: 3648269 (1972-03-01), Rosenweig et al.
patent: 3938263 (1976-02-01), Tate
patent: 4143472 (1979-03-01), Murata et al.

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