Fin
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United States of America Patent
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Oct 9, 2012
Grant Date -
Feb 3, 2011
app pub date -
Dec 11, 2007
filing date -
Dec 11, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An object of the present invention is to provide fin in which the fin can be easily attached or detached to a board, its attached state can be maintained well, and the fin readily comes off in an emergency such as when the fin is brought into contact with human body.
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