Patents Assigned to Nowata Agricultural Management Co., Inc.
  • Automatically adjustable modern pipe wrench
    Patent number: 4903555
    Abstract: A pipe wrench that is readily fitted to a desired size by engagement of rack-like teeth on a stem portion with a movable jaw with co-engaging rack-like teeth, the pipe wrench being of a modern type and including means for retrofitting conventional modern pipe wrenches.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: February 27, 1990
    Assignee: Nowata Agricultural Management Co., Inc.
    Inventor: Carl B. Howard