Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Walter Appel 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: 2715401     View patent at USPTO
    Title: NASAL RESPIRATORS
    Assignee: None
    Issue Date: August 16, 1955
    Inventor(s): Walter Karl Appel, Cheyenne, WY