Wyoming Inventors Database
Wyoming Inventors : Name Search Results

John Duncan 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: 1155901     View patent at USPTO
    Title: MUSHROOM-BULLET
    Assignee: None
    Issue Date: October 5, 1915
    Inventor(s): John B. Duncan, Wolf, WY