Tsan-chang Lee

5 Patents

• US125830822026

  Engaging Structure for Hand Tool

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• US125337742026

  Engaging Structure for Hand Tool

  0 cites
• USD11006142025

  Combination Wrench

  0 cites
• US124343572025

  Ratchet Wrench

  0 cites
• US123251092025

  Ratchet Wrench Structure

  0 cites