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TOP DRIVE CASING SYSTEM

10/350,218 | U.S. Patent Application

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Location ELECTRONIC
Filed Jan. 23, 2003
Examiner RODNEY H BONCK
Class 166
Art Group 3655
Patent No. 7,918,273
Case Type Utility - 166/237000
Status Patented Case
Parent 09/550,721 Patented
Child 13/78,743 Patented
Last Updated: 5 years, 10 months ago
Date # Transaction