Particle board
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United States of America Patent
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Mar 19, 2013
Grant Date -
Aug 30, 2012
app pub date -
May 10, 2012
filing date -
Nov 13, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a particle board comprising a lower and an upper surface layer (9, 11) having a finer fraction of particles (4), and between these surface layers (9, 11) an intermediate layer (13) having a coarser fraction of particles (5). The intermediate layer (13) has a varying density.
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