Patent Assignment Abstract of Title
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Total Assignments:
2
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Patent #:
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Issue Dt:
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12/29/1987
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Application #:
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06816668
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Filing Dt:
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01/07/1986
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Inventor:
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MICHAEL SHEPPARD
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Title:
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METHOD OF DRILLING A DIRECTIONAL WELL BORE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| DE RUYTERKADE 62, WILLEM STAD |
| CURACAO, NETHERLANDS ANTILLES |
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| WARREN L. FRANZ |
| SCHLUMBERGER LTD., PAT. DEPT. |
| 205 INDUSTRIAL RD. |
| SUGAR LAND, TX 77478 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 200 MACCO BOULEVARD |
| SUGAR LAND, TEXAS 77478 |
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| PATENT COUNSEL |
| SCHLUMBERGER LTD. |
| 200 MACCO BLVD. |
| SUGAR LAND, TX 77478 |
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