Patent Assignment
Reel/Frame 025557/0743
Assignment of Assignor's Interest
Recorded: 2010-12-30
Pages: 5
Assignee
DRECO ENERGY SERVICES LTD.
3660 - 93RD STREET, EDMONTON, ALBERTA, T6E 5N3, CANADA
Covered Property
(1)
Mechanism for Providing Controllable Angular Orientation While Transmitting Torsional Load
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.