4. Measuring and testing
  5. Hardness
  6. By penetrator or indentor

Roderick Mackenzie

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Snow traction unit for vehicles

Motor vehicles – Special driving device – Portable track
Reexamination Certificate

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Soil or snow probe

Measuring and testing – Hardness – By penetrator or indentor
Reexamination Certificate

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Subsea communication system and technique

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2909646

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