Mechanical locking of floor panels
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United States of America Patent
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May 17, 2016
Grant Date -
Apr 3, 2014
app pub date -
Dec 3, 2013
filing date -
Jan 31, 2008
priority date (Note) -
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Abstract
Floor panels are shown, which are provided with a mechanical locking system comprising tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.
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