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JF

Jan Freyer

Overall (1997): #136,347 of 185,788Top 75%
1 Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5655607 Downhole tool for pressure testing of oil and gas wells Jone Mellemstrand, Bernt Sigve Aadn.o slashed.y, Svein ritsland 1997-08-12