"Acoustic Barkhausen Stress Detector Apparatus & Method"
Patent No.:	4,408,160
Inventor(s):	J. Derwin King, Gary L. Burkhardt, George A. Matzkanin, John R. Barton
Date of Issue:	10/4/1983
Assignee:	U.S. Air Force
Full Text:	US Patent & Trademark Office

Click on the inventor's name to view related technical resources:
Gary L. Burkhardt:	Staff Scientist, Sensor Systems & Nondestructive Evaluation (NDE) Technology, Mechanical Engineering
J. Derwin King:	Former SwRI Employee, Space Science & Engineering
John R. Barton:	Former SwRI Employee
George A. Matzkanin:	Former SwRI Employee

For further information, contact the Communications Department, Southwest Research Institute.

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