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Patent Assignment Details
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Reel/Frame:005151/0518   Pages: 4
Recorded: 10/04/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Total properties: 1
1
Patent #:
Issue Dt:
12/11/1990
Application #:
07417174
Filing Dt:
10/04/1989
Title:
SYSTEM AND METHOD FOR MONITORING DRILL BIT DEPTH
Assignors
1
Exec Dt:
09/29/1989
2
Exec Dt:
10/03/1989
Assignee
1
200 MACCO BOULEVARD
SUGAR LAND, TEXAS 77478
Correspondence name and address
ANADRILL INC.
200 MACCO BLVD.
SUGAR LAND, TX 77478

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