Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Frank 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: 1830984     View patent at USPTO
    Title: LEAD COMPOUND
    Assignee: Standard Oil Company
    Issue Date: November 10, 1931
    Inventor(s): Frank S. Campbell, Casper, WY
    Sterling Henry Diggs, Casper, WY