E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
20/18.4
E04B 5/55 (1980.01)
Patent
CA 1143531
WALLBOARD CEILING SUSPENSION ABSTRACT OF THE DISCLOSURE A wallboard ceiling with a novel concealed attachment means including a centrally suspended flexible gang nail plate and means for attachment to a wood joist or truss.
348804
Smith Richard E.
Wing Steven D.
National Gypsum Company
Osler Hoskin & Harcourt Llp
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