发明名称 DEVICE AND EQUIPMENT FOR UNDERWATER EXPLORATION
摘要 A device comprising a downwardly-open bell (1) for covering the head of a user, and means for feeding air into the inner space of the bell (1). The bell advantageously includes a substantially cylindrical portion with a sealed upper end (3) and an open lower end (2). The lower portion of said cylindrical portion widens out into side shoulder flaps (6, 7). The open end has a cross-section large enough to let the user's hand or forearm through when the bell is in place over the user's head.
申请公布号 WO9729951(A1) 申请公布日期 1997.08.21
申请号 WO1997FR00311 申请日期 1997.02.19
申请人 MERCIER, ROLAND;CHEVREUX, MICHEL 发明人 MERCIER, ROLAND;CHEVREUX, MICHEL
分类号 B63C11/06;B63C11/20;B63C11/22;(IPC1-7):B63C11/06 主分类号 B63C11/06
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