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

Gang Feng

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Battery pack with light

Lighting – Light fixture – Hand-held – body-attached or lantern type
Design Patent

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Method for measuring elastic properties

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

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Profile ID: LFUS-PAI-P-2810059

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