Method and apparatus for maintaining the performance of new water wells and for cleaning and regeneration of excisting water wells by means of ultrasound
摘要
申请公布号
EP0778393(A3)
申请公布日期
1997.10.22
申请号
EP19960250281
申请日期
1996.12.05
申请人
DANKWART KLEIN ERDBOHRUNGEN GMBH & CO., BRUNNENBAU KG
发明人
GEISEN, GERHARD;JACOBS, KLAUS, PROF. DR.;BARTETZKO, ANDREAS
