Posterboard

Details Posterboard Posterboard

B - Operations, Transporting

41

F

B41F 23/08 (2006.01) B41L 23/24 (2006.01) G09F 15/00 (2006.01) G09F 19/14 (2006.01)

Patent

CA 2181001

Improved posterboard is formed from a rectangular posterboard having vertical side edges and horizontal top and bottom edges. Guide marking are applied to the posterboard. The guide markings are visually perceptible at a writing distance away from the posterboard, and substantially imperceptible at a viewing distance length away from the posterboard.

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