Patents Assigned to Keel Manufacturing, Inc.
  • Ceiling panel hold down clip
    Patent number: D421897
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 28, 2000
    Assignee: Keel Manufacturing, Inc.
    Inventors: Don M. Washecheck, Noel R. Halverson, Michael J. Wolfe
  • Ceiling grid wall clip
    Patent number: D422486
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: April 11, 2000
    Assignee: Keel Manufacturing, Inc.
    Inventors: Michael J. Wolfe, Don M. Washecheck, Noel R. Halverson