IP Library › Granted Patent US 6,784,400
Granted Patent Utility
US 6,784,400 · Confirmation No. 1457

METHOD OF SHORT PULSE HOLE DRILLING WITHOUT A RESULTANT PILOT HOLE AND BACKWALL DAMAGE

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Quick Facts
Patent No.
US 6,784,400
App. No.
10/377,902
Filed
2003-03-03
Granted
2004-08-31
Art Unit
1725
PTA
-103 days