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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08/26/1986
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Application #:
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06706987
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Filing Dt:
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02/28/1985
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Inventor:
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DJURRE H. ZIJSLING
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Title:
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ROTARY DRILL BIT WITH CUTTING ELEMENTS HAVING A THIN ABRASIVE FRONT LAYER
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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A CORP. OF DE. |
CHICAGO, ILLINOIS 60637 |
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JOHN H. MC CARTHY |
SHELL DEVELOPMENT CO. |
PATENTS AND LICENSING DIV. |
ONE SHELL PLAZA P. O. BOX 2463 |
HOUSTON, TX 77001 |
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