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ROTARY DRAG BIT AND METHODS THEREFOR

12/20,492 | U.S. Patent Application

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Location ELECTRONIC
Filed Jan. 25, 2008
Examiner WILLIAM P NEUDER
Class 175
Art Group 3672
Patent No. 7,762,355
Case Type Utility - 175/057000
Status Patented Case
Parent 60/897,457 Expired
Last Updated: 5 years, 9 months ago
Date # Transaction