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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03/03/1992
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Application #:
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07620238
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Filing Dt:
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11/29/1990
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Inventor:
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HOWARD J. WALK
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Title:
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EARTH BORING BIT WITH RECESSED ROLLER BEARING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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3900 ESSEX LANE, SUITE 1200, |
HOUSTON,, TEXAS 77027 |
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G.W. SPINKS |
BAKER HUGHES INC. |
INTELLECTUAL PROP. DEPT. |
P.O. BOX 4740 |
HOUSTON, TX 77210-4740 |
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