4. Measuring, testing, or signalling instruments
  5. Measuring, regulating or indicating instrument, or casing
  6. Geometric

Wen Hsin Liao

Inventor

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Laser leveling device having selectable light beam

Geometrical instruments – Straight-line light ray type – Alignment device
Reexamination Certificate

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Level device

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Design Patent

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Profile ID: LFUS-PAI-P-2793527

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