B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/117
B32B 3/28 (2006.01) B32B 17/02 (2006.01) B32B 17/10 (2006.01) B32B 27/12 (2006.01) E04C 2/24 (2006.01) E04F 13/08 (2006.01)
Patent
CA 1196847
VINYL FACED WALLBOARD Abstract of the Disclosure The invention is directed to a wallboard structure which is first composed of a base sheet having a dense upper surface region. Over the dense surface region there is placed a vinyl sheet. Perforations are placed through the vinyl sheet and through the dense surface region and partly into the base region so there is formed an acoustical vinyl faced wallboard.
416316
Haines Charles Jr.
Kent Raymond C.
Armstrong World Industries Inc.
Gowling Lafleur Henderson Llp
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