Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Ella Karns 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: 1371172     View patent at USPTO
    Title: TIME-CONTROLLED DAM-GATE
    Assignee: None
    Issue Date: March 8, 1921
    Inventor(s): Ella Karns, Jackson, WY