VENTILATION UNITS
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United States of America Patent
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Issued Date -
May 7, 2015
app pub date -
Jun 25, 2013
filing date -
Jun 26, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A set of ventilation units comprises a first and second ventilation unit, wherein a surface of the first ventilation unit is provided with at least one formation and a surface of the second ventilation unit is provided with at least one co-operating formation. The formation(s) and co-operating formation(s) is/are engageable with one another in a direction substantially perpendicular to said surface of the first ventilation unit and/or said surface of the second ventilation unit.
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