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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07/14/1981
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Application #:
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06113497
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Filing Dt:
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01/21/1980
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Inventors:
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DAVID S. ROWLEY, JAMES T. AUMANN, LOTHAR H. WALDES
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Title:
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COMPOSITE HEAVY METAL DRILL COLLAR
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| A JOINT VENTURE OF DE |
| NOT PROVIDED |
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| LADAS & PARRY |
| 26 WEST 61ST ST. |
| NEW YORK, NY 10023 |
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