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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
主权项
地址
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