发明名称 Face mask for use under water.
摘要 <p>A face mask for use under water, which is arranged to sealingly cover at least the eyes and nose of a user, and including conduit means (5a,5b) for sealingly connecting each of the user's ear passages (E) to the interior of the mask, to equalise the air pressure therebetween.</p>
申请公布号 EP0355993(A1) 申请公布日期 1990.02.28
申请号 EP19890307350 申请日期 1989.07.20
申请人 KAMITANI, SHIGEKI 发明人 KAMITANI, SHIGEKI
分类号 A61F9/02;A61F11/06;A61F11/08;A63B33/00;B63C11/12;(IPC1-7):B63C11/12 主分类号 A61F9/02
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