Changeable sign board with magnetic characters

Card – picture – or sign exhibiting – Signs – Interchangeable

Patent

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Details

40449, 40450, 40600, G09F 704

Patent

active

045833125

ABSTRACT:
A changeable sign includes a flat magnetizable sheet metal sign board, and a plurality of trapezoidal segments of magnetic sheet material sized and arranged to form segmented alphanumeric characters magnetically adhered to the board. The board also includes space to apply a sheet of magnetic material containing printed information. Semi-invisible guidelines on the board, such as glossy lines on a flat background of the same color, guide the positioning of the segments to form the characters. The segments are formed with non-acute angle corners to maximize adherence at their corners. The segments are rearranged to form different characters and can be repositioned at will on the sign board over the guidelines to completely alter the sign format.

REFERENCES:
patent: 417931 (1889-12-01), Miatt
patent: 755272 (1904-03-01), Burnham
patent: 1357457 (1920-11-01), Jorgensen
patent: 1531070 (1925-03-01), Bruns
patent: 1679520 (1928-08-01), Giroux
patent: 3074193 (1963-01-01), Munson
patent: 3365824 (1968-01-01), Winrow
patent: 3726026 (1973-04-01), Borcherding
patent: 3769720 (1973-11-01), Terrones
patent: 3782016 (1974-01-01), Ashton et al.
patent: 3988845 (1976-11-01), Boatman
patent: 4115936 (1978-09-01), Nidelkoff
patent: 4164824 (1979-08-01), Nidelkoff
patent: 4223464 (1980-09-01), Winrow
patent: 4242823 (1981-01-01), Bruno
patent: 4251936 (1981-02-01), Ferrell
patent: 4366637 (1983-01-01), Dechamps
patent: 4507888 (1985-04-01), Robinson et al.
Rubber Magnet ad, Charles Mayer Studios Inc., 1960.

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