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Alv Hanstvedt

Dimmelsvik, NO: #1 of 1 inventorsTop 100%

Overall (All Time): #3,321,831 of 4,157,543Top 80%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7513712	Device and a method for drainage of water from rock caves	—	2009-04-07