Magnetic map marker

Details Magnetic map marker Magnetic map marker

1987-02-11

1989-01-31

Mancene, Gene

Card, picture, or sign exhibiting

Display device with magnetically moved object

40621, G09F 1900

Patent

active

048006629

ABSTRACT:
A magnetic marker is provided for maps comprising a marking unit of predetermined shape for the front surface of the map and including a magnetic material such as a sheet of soft iron. A magnet is provided for the rear surface of the map to attract the marker and hold it in place. The magnet is a double-faced magnet having north and south poles on an active face.

REFERENCES:
patent: 2282430 (1942-05-01), Smith
patent: 2525738 (1950-10-01), Tormey
patent: 2761413 (1956-09-01), Breer
patent: 2951703 (1960-09-01), Arnold, Jr.
patent: 2988835 (1961-06-01), Murphy
patent: 3001308 (1961-09-01), Potter
patent: 3116929 (1964-01-01), Kernodle
patent: 3670435 (1972-06-01), Steward
patent: 3685170 (1972-08-01), Fairleigh

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