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Thomas Derkacs
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Cleveland, OH, US
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last 30 patents
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Patent Grant
Method and apparatus for inspecting a surface
Patent number
4,709,156
Issue date
Nov 24, 1987
Ex-Cell-O Corporation
Stephan D. Murphy
G01 - MEASURING TESTING
Information
Patent Grant
Reference standard for calibration of ultrasonic arrays
Patent number
4,660,419
Issue date
Apr 28, 1987
TRW Inc.
Thomas Derkacs
G01 - MEASURING TESTING
Information
Patent Grant
Phased array inspection of cylindrical objects
Patent number
4,523,468
Issue date
Jun 18, 1985
TRW Inc.
Thomas Derkacs
G01 - MEASURING TESTING
Information
Patent Grant
Airfoil
Patent number
4,411,940
Issue date
Oct 25, 1983
TRW Inc.
Thomas Derkacs
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Control apparatus
Patent number
4,358,471
Issue date
Nov 9, 1982
TRW Inc.
Thomas Derkacs
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for use in making an object
Patent number
4,334,495
Issue date
Jun 15, 1982
TRW Inc.
Thomas Derkacs
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR