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Aadland; Harald
Nesttun, NO
No. of patents:

Patent Number Title Of Patent Date Issued
6761233 Apparatus for propulsion in elongated cavities July 13, 2004
An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed. The apparatus is characterized by comprising a central rotating part comprising an inclined wheel construction arranged to thrust towards the inner wall of the cavity, in that the central rotati

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