4. Communications, electrical: acoustic wave systems and devices
  5. Signal transducers

Alfred Graff

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Device for the ultrasonic inspection of the weld seam of...

Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate

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Device for ultrasonic weld seam testing of longitudinally...

Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate

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Electrodynamic permanent magnet transducer

Communications – electrical: acoustic wave systems and devices – Signal transducers
Patent

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Electrodynamic transducer head

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Electrodynamic ultrasonic transducer

Communications – electrical: acoustic wave systems and devices – Signal transducers
Patent

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Profile ID: LFUS-PAI-P-956509

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