4. Measuring and testing
  5. Vibration
  6. By mechanical waves

David A. Lilienthal

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Reference standard for ultrasonic measurement of porosity...

Measuring and testing – Instrument proving or calibrating – Apparatus for measuring by use of vibration or apparatus for...
Reexamination Certificate

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Ultrasonic inspection reference standard for composite...

Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3040273

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