B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/6
B05D 3/06 (2006.01) B05D 5/06 (2006.01) B44D 3/18 (2006.01) C04B 41/00 (2006.01) G09F 13/42 (2006.01)
Patent
CA 1252001
ABSTRACT OF THE DISCLOSURE Gypsum wallboard, for use in drywall construction, printed with suitable identifying indicia on the face using an optical brightener which is visible only under ultra-violet light. The wallboard is identifiable as to source, after the board is installed, and even after having been painted.
530862
National Gypsum Properties Llc
Osler Hoskin & Harcourt Llp
LandOfFree
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