发明名称 DEVICE FOR THE IMPROVEMENT OF THE ENVIRONMENT IN THE ORAL CAVITY DURING DENTAL TREATMENT
摘要 A bubble which consists of an upper section (1) and a lower section (2) held together with a tear-off strip (3). The upper section (1) is provided with an instrument opening (4) and folds (6). The lower section (2) has a dental opening (7) with a frame (9) and an extractor orifice (8).
申请公布号 WO9413222(A1) 申请公布日期 1994.06.23
申请号 WO1993NO00187 申请日期 1993.12.10
申请人 NILSSON, JOHN, THORLEIF;BORCH, BJORN 发明人 NILSSON, JOHN, THORLEIF;BORCH, BJORN
分类号 A61C5/14;A61C17/08;A61C17/10 主分类号 A61C5/14
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