Process for strengthening plywood
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United States of America Patent
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Aug 31, 2004
Issued Date -
N/A
app pub date -
Oct 3, 2002
filing date -
Oct 19, 1999
priority date (Note) -
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Abstract
A process for increasing the strength of plywood. The process includes pressing the piece of plywood between two hard faces which have parallel ridges contacting the two outer sides of the plywood to be strengthened. The plywood is subjected to pressure which permanently impresses a series of parallel grooves in the two outer faces of the piece of plywood. This strengthens the piece of plywood so that it takes more force to break it than the same piece of plywood without such parallel grooves.
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