Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Element spaced from wall – ceiling – or floor and held by...
Patent
1994-08-29
1999-11-02
Friedman, Carl D.
Static structures (e.g., buildings)
Sheetlike element assembled parallel to existing wall,...
Element spaced from wall, ceiling, or floor and held by...
5250606, E04B 900
Patent
active
059747544
ABSTRACT:
A ceiling board has a depression formed in the four corners of the face surface of the ceiling board. When the horizontal flange of one cross runner overlies the horizontal flange of the main runner, the edge of the ceiling board will rest on the flange of the main runner because the overlying runner is accommodated in the corner depression.
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Bodine Darryl C.
Vernau G. Douglas
Armstrong World Industries Inc.
Callo Laura A.
Friedman Carl D.
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