Patents Assigned to AA Technology AS
  • Apparatus for propulsion in elongated cavities
    Patent number: 6761233
    Abstract: An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: July 13, 2004
    Assignee: AA Technology AS
    Inventor: Harald Aadland