发明名称 DEVICE CAPABLE OF MOVING WHILE ADHERING TO OBJECT SURFACE UNDER LIQUID LEVEL
摘要 <p>Outer and inner seals provided in the opening of outer and inner casing, contact with the object surface. Two gas regions are formed by combining outer and inner seals and inner and outer casings.</p>
申请公布号 EP1491432(A1) 申请公布日期 2004.12.29
申请号 EP20030712896 申请日期 2003.03.25
申请人 URAKAMI, FUKASHI 发明人 URAKAMI, FUKASHI
分类号 A47L11/38;B23K9/00;B23K37/02;B62D57/02;B62D57/024;B62D57/04;B63B59/10;(IPC1-7):B62D57/02 主分类号 A47L11/38
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