Total properties:
12
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Patent #:
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Issue Dt:
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03/11/1986
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Application #:
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06566962
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Filing Dt:
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12/29/1983
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Title:
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SOLID HEAD BIT WITH TUNGSTEN CARBIDE CENTRAL CORE
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Patent #:
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Issue Dt:
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07/29/1986
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Application #:
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06618113
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Filing Dt:
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06/07/1984
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Title:
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DIAMOND DRILL BIT WITH VARIED CUTTING ELEMENTS
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Patent #:
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Issue Dt:
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08/05/1986
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Application #:
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06656825
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Filing Dt:
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10/02/1984
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Title:
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REPLACEABLE BIT NOZZLE
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Patent #:
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Issue Dt:
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05/26/1987
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Application #:
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06867343
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Filing Dt:
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05/23/1986
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Title:
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MATRIX BIT WITH EXTENDED BLADES
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Patent #:
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Issue Dt:
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09/29/1987
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Application #:
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06880214
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Filing Dt:
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06/30/1986
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Title:
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DRILLING BIT WITH FULL RELEASE VOID AREAS
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Patent #:
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Issue Dt:
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08/11/1987
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Application #:
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06893112
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Filing Dt:
|
08/04/1986
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Title:
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METHOD OF HARDFACING STEEL BODIED BITS
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Patent #:
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Issue Dt:
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12/22/1987
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Application #:
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07042546
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Filing Dt:
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04/23/1987
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Title:
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DIAMOND DRILL BIT WITH CO-JOINED CUTTERS
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Patent #:
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Issue Dt:
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11/03/1987
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Application #:
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07046204
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Filing Dt:
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05/04/1987
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Title:
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EARTH BORING BIT HAVING A REPLACEABLE, THREADED NOZZLE WITH WRENCH SOCKET
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Patent #:
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Issue Dt:
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03/27/1990
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Application #:
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07346924
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Filing Dt:
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05/03/1989
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Title:
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POLYCRYSTALLINE DIAMOND CUTTING ELEMENT WITH MATING RECESS
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Patent #:
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Issue Dt:
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07/17/1990
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Application #:
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07409706
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Filing Dt:
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09/20/1989
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Title:
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ONE-PIECE DRILL BIT WITH IMPROVED GAGE DESIGN
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Patent #:
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Issue Dt:
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04/16/1991
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Application #:
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07484406
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Filing Dt:
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02/23/1990
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Title:
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DRILL BIT HAVING IMPROVED CUTTING ELEMENT RETENTION SYSTEM
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Patent #:
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Issue Dt:
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12/03/1991
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Application #:
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07484510
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Filing Dt:
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02/23/1990
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Title:
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DIAMOND DRILL BIT WITH VARIED CUTTING ELEMENTS
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