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5370245 | Tersch et al. | Dec 1994 | A |
5582302 | Kozak | Dec 1996 | A |
6290074 | Syvuk et al. | Sep 2001 | B1 |
6578802 | Thier | Jun 2003 | B1 |
Entry |
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XSports Website, www.xsports.com/water.html, Jan. 31, 1997.* |
U.S. patent application Publication No. US 2003/0071179, filed Oct. 11, 2001, published Apr. 17, 2003, inventor: Mearns. |