Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yu Zheng0
Date of Patent
July 4, 2006
0Patent Application Number
109702460
Date Filed
October 20, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus has a first section having a hollow interior that is filled with air, and a second section attached to the top of the first section and having a hollow interior that retains a liquid.
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