Seesaw
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United States of America Patent
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-
May 21, 2013
Grant Date -
Mar 10, 2011
app pub date -
Dec 30, 2008
filing date -
Dec 31, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A seesaw having a plurality of illumination means provided on both sides of a pivotable elongate member. The illumination means are controlled by control means dependent upon the inclination of the elongate member.
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