Glass-reinforced composite gypsum board
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United States of America Patent
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-
Mar 25, 1980
Issued Date -
N/A
app pub date -
Mar 15, 1976
filing date -
Nov 12, 1973
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A reinforced gypsum board having glass fibers concentrated in the portions of the rehydrated stucco immediately below the surfaces of the board, these portions being further defined by a density that is substantially greater than that of the interior portion of the board.
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Cited Art Landscape
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