4. Boring or penetrating the earth
  5. Boring without earth removal
  6. Combined with earth removal

Chin-Chih Chen

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Automatic statistical process control (SPC) chart generation...

Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate

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Impact method and the device used in standard penetration test

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Reexamination Certificate

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Piezoelectric o-ring transducer

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2027793

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