发明名称 VACUUM SUCTION DEVICE
摘要 FIELD: medical engineering. SUBSTANCE: device has sealed closed reservoir where rarefaction is created as a result of water level drop. Water supply and discharge is carried out in automatically and supported with three buoys and shutting control unit. EFFECT: enhanced effectiveness of operation in autonomous mode. 1 dwg
申请公布号 RU2217172(C2) 申请公布日期 2003.11.27
申请号 RU19990127403 申请日期 1999.12.21
申请人 GRANKIN VENIAMIN EGOROVICH 发明人 GRANKIN V.E.
分类号 A61M1/00 主分类号 A61M1/00
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