Wallboard identification system

Details Wallboard identification system Wallboard identification system

1986-06-30

1988-02-16

Bell, Paul A.

Printed matter

Method

Identifying

52105, 283 1R, D42D 1500

Patent

active

047250780

ABSTRACT:
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.

REFERENCES:
patent: 2270419 (1942-01-01), Debo
patent: 4157784 (1979-06-01), Grottrup et al.

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