B - Operations – Transporting – 43 – L
Patent
B - Operations, Transporting
43
L
B43L 1/06 (2006.01)
Patent
CA 2338227
The present invention relates to a writing board with reference lines which are invisible from a distance, and to a process for its fabrication. The board is comprised of at least one support substrate (110) and one writing substrate (120) which are interconnected, wherein the reference lines (130) are so printed that they remain inserted between the support substrate and the writing substrate thereby increasing their durability. The reference lines (130) can be clearly seen by a person which is close to the writing board, while they are invisible for a person standing far from the board.
L'invention concerne un tableau sur lequel on peut écrire présentant des lignes de référence invisibles à distance et son procédé de fabrication. Ce tableau comprend au moins un substrat de support (110) et un substrat d'écriture (120) tous deux reliés. Les lignes de référence (130) sont imprimées de manière être insérées entre le substrat de support et le substrat d'écriture augmentant ainsi leur durabilité. Les lignes de référence (130) peuvent être perçues avec clarté par une personne se trouvant à proximité du tableau alors qu'elles sont invisibles pour une personne se trouvant à une certaine distance du tableau.
Aldrete Frances Genaro
Moffat & Co.
LandOfFree
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