Shioya Tutomu

Person

  • Takasaki, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Drawing apparatus

    • Patent number 4,241,512
    • Issue date Dec 30, 1980
    • Max Co. Ltd.
    • Kimijima Chikanobu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES