发明名称 Snorkel with whistler
摘要 Provided is a snorkel having a whistler. In one embodiment, the whistler is mounted on a breathing tube. A swimmer wearing the snorkel may seize the whistler by the mouth prior to making a clear, shrill sound by activating the whistler.
申请公布号 US7191779(B2) 申请公布日期 2007.03.20
申请号 US20050055683 申请日期 2005.02.11
申请人 QDS INJECTION MOLDING LLC 发明人 SHIUE CHIH-CHENG
分类号 B63C11/16;B63C11/02 主分类号 B63C11/16
代理机构 代理人
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