4. Machines not elsewhere specified
  5. Material working, abrading, or founding machinery
  6. Abrading

Mu-Yen Chien

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Drill sharpener

Machines not elsewhere specified – Material working – abrading – or founding machinery
Patent

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Grinding machine

Machines not elsewhere specified – Material working – abrading – or founding machinery – Abrading
Patent

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Grindstone shield and worktable of grinding machine

Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent

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Profile ID: LFUS-PAI-P-551476

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