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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09/19/1989
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Application #:
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07254422
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Filing Dt:
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10/06/1988
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Inventors:
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KEITH M. HANEY, JERRY K. LINGAFELTER
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Title:
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COMPACT CASING TONGS FOR USE ON TOP HEAD DRIVE EARTH DRILLING MACHINE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| WILLIAM A. WEBB |
| WILLIAN BRINKS OLDS HOFER |
| GILSON & LIONE LTD. |
| P. O. BOX 10395 |
| CHICAGO, IL 60610 |
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