Patents Assigned to Aruman Kabushiki Kaisha
  • Pipe
    Patent number: D304625
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: November 14, 1989
    Assignee: Aruman Kabushiki Kaisha
    Inventor: Yutaka Katayama
  • Pipe
    Patent number: D304771
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: November 21, 1989
    Assignee: Aruman Kabushiki Kaisha
    Inventor: Yutaka Katayama