4. Tool driving or impacting
  5. Work cleansing
  6. Cleansing fluid passage through hammer head

Hirokazu Karasawa

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3D ultrasonographic device

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate

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Downhole percussion drills

Tool driving or impacting – Work cleansing – Cleansing fluid passage through hammer head
Reexamination Certificate

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Ultrasonograph, ultrasonic transducer, examining instrument,...

Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2786749

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