4. Measuring and testing
  5. Speed, velocity, or acceleration

Yong-chul Cho

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Electronic pen input device and coordinate detecting method...

Computer graphics processing and selective visual display system – Display peripheral interface input device – Stylus
Reexamination Certificate

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Micro structure for vertical displacement detection and...

Measuring and testing – Speed – velocity – or acceleration
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2718948

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