Stock material or miscellaneous articles – Sheets or webs edge spliced or joined – Sheets or webs coplanar
Patent
1985-03-18
1986-04-22
Thomas, Alexander S.
Stock material or miscellaneous articles
Sheets or webs edge spliced or joined
Sheets or webs coplanar
428157, 428192, 428194, 156 45, 52417, B32B 302, B32B 306
Patent
active
045842248
ABSTRACT:
A tapered edge wallboard, for monolithic wall construction, in which the taper is formed by removal of core material along an edge, as by a saw cut, and a thin layer of edge material is bent inward, closing the saw-cut groove and resulting in a taper.
REFERENCES:
patent: 1660834 (1928-02-01), Erola
patent: 3806389 (1974-04-01), Gwynne
Hause Robert F.
National Gypsum Company
Thomas Alexander S.
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