Building board, particularly gypsum plasterboard
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United States of America Patent
Stats
-
Aug 22, 1989
Grant Date -
N/A
app pub date -
Dec 9, 1985
filing date -
Jan 24, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to facilitate the placing of gypsum plasterboards, the boards are provided on their surface with a marking, which comprises length scales extending along regularly spaced apart lines which are parallel to the edges of the board. The marking may preferably be applied in the form of paints which fade under the action of light.
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Family
International Classification(s)
Cited Art Landscape
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