TREA

Yukimasa Kuwabara

Follow

Person

  • Saitama, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical pencil
    • Patent number 4,714,365
    • Issue date Dec 22, 1987
    • Kabushikikaisha Kotobuki
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES