4. Geometrical instruments
  5. Straightedge type
  6. Combined with level

Tho Tran

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Level

Geometrical instruments – Straightedge type – Combined with level
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Level vial and manufacturing method therefor

Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
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Profile ID: LFUS-PAI-P-3046583

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