TREA

Sho Takano

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  • Narita, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Boring drill bit
    • Patent number 4,625,816
    • Issue date Dec 2, 1986
    • Sumitomo Metal Mining Company Limited
    • Sho Takano
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Boring apparatus
    • Patent number 4,470,470
    • Issue date Sep 11, 1984
    • Sumitomo Metal Mining Company Limited
    • Sho Takano
    • E21 - EARTH DRILLING MINING