Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Earl Campbell has a total of 1 patent(s) in the database.

* Some patents in this database have one or more inventors, not all of whom may be from Wyoming.

 

  1. Patent Number: 1890028     View patent at USPTO
    Title: DEMOUNTABLE RIM
    Assignee: A. J. McClelland
    Issue Date: December 6, 1932
    Note: Assignee held one-half
    Inventor(s): Earl E. Campbell, Gillette, WY