Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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NONE
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Issue Dt:
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Application #:
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12500090
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Filing Dt:
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07/09/2009
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Publication #:
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Pub Dt:
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01/13/2011
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Inventors:
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Kenneth E. Welker, Roger Ellingsen, Rune Toennessen
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Title:
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ACCURACY OF A COMPASS PROVIDED WITH A CARRIER STRUCTURE FOR USE IN SUBTERRANEAN SURVEYING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 10001 RICHMOND AVENUE |
| IP DEPT - JEFF GRIFFIN |
| HOUSTON, TEXAS 77042 |
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| WESTERNGECO L.L.C. |
| 10001 RICHMOND AVENUE |
| JEFFREY E. GRIFFIN |
| HOUSTON, TX 77042-4299 |
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