SCREEN UNIT
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United States of America Patent
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N/A
Issued Date -
Mar 8, 2012
app pub date -
Aug 22, 2011
filing date -
Sep 3, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A screen unit includes: a first frame and a second frame which extend in parallel with each other; a first roll provided in the first frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the first roll; a second roll provided in the second frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the second roll; and a screen which has one end fixed to the first roll and the other end fixed to the second roll, and is wound around the first roll and the second roll by the urging forces.
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