Patent Assignment
Reel/Frame 032705/0902
Assignment of Assignor's Interest
Recorded: 2014-04-18
Pages: 4
Assignor
VATNE, PER A.
Executed: 2014-03-31
Assignee
HAMMERGY AS
PEDERSGATA 51, STAVANGER, NO-4013, NORWAY
Covered Property
(1)
High Frequency Fluid Driven Drill Hammer Percussion Drilling in Hard Formations