Patents Assigned to OISHI INTERNATIONAL SYSCOM CO., LTD
  • Cutter head and rock excavator
    Publication number: 20030230925
    Abstract: The present invention relates to a cutter head and a rock excavator provided therewith utilized for excavating base rocks in free section to proceed excavating a mine gallery, a tunnel, a shaft and the like.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 18, 2003
    Applicant: OISHI INTERNATIONAL SYSCOM CO., LTD
    Inventor: Kazuyoshi Oishi