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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07/11/1989
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Application #:
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07178485
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Filing Dt:
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04/07/1988
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Inventors:
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JOHN R. SETTERBERG JR., ROBERT D. HARRISON JR.
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Title:
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TRASH BARRIER TOOL FOR WELLS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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ROLAND O. COX |
P.O. BOX 819052 |
DALLAS, TEXAS 75381-9052 |
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