Patents Assigned to The Powell Pressed Steel Company
  • Stackable material handling box
    Patent number: D244011
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: April 12, 1977
    Assignee: The Powell Pressed Steel Company
    Inventor: William R. Powell
  • Material handling box
    Patent number: D246350
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: November 15, 1977
    Assignee: The Powell Pressed Steel Company
    Inventor: William R. Powell