Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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07/10/1990
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Application #:
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07241170
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Filing Dt:
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09/06/1988
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Inventor:
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Y. GILBERT HILSMAN III
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Title:
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GRAVEL PACKING TOOL
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| STEPHEN A. LITTLEFIELD |
| DOWELL SCHLUMBERGER INC., |
| P. O. BOX 2710 |
| TULSA, OK 74101 |
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