4. Electricity: measuring and testing
  5. Magnetic
  6. Magnetometers

Sang-on Choi

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Apparatus and method of calibrating azimuth of mobile device

Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Reexamination Certificate

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Apparatus and method of calibrating azimuth of mobile device

Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Reexamination Certificate

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Apparatus and method of compensating for an attitude error...

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

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Apparatus for measuring number of footsteps and method thereof

Registers – Pedometers
Reexamination Certificate

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Device and method for automatically detecting a calibration...

Data processing: measuring – calibrating – or testing – Calibration or correction system – Direction
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Profile ID: LFUS-PAI-P-2376788

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