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Patent Assignment Details
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Reel/Frame:008838/0121   Pages: 5
Recorded: 12/08/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 2
1
Patent #:
Issue Dt:
03/30/1993
Application #:
07744859
Filing Dt:
08/14/1991
Title:
DRILLING WITH CASING AND RETRIEVABLE DRILL BIT
2
Patent #:
Issue Dt:
12/21/1993
Application #:
07960667
Filing Dt:
10/14/1992
Title:
DRILLING WITH CASING AND RETRIEVABLE DRILL BIT
Assignor
1
Exec Dt:
05/08/1997
Assignee
1
6204 6A STREET S.E.
CALGARA, ALBERTA, T2H 2B7, CANADA
Correspondence name and address
TESCO CORPORATION
KENNETH M. BABAN
GENERAL COUNSEL
6204 6A STREET S.E.
CALGARY, ALBERTA T2H 2B7 CANADA

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