Wyoming Inventors Database
Wyoming Inventors : Name Search Results

John OBrien 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: 1853923     View patent at USPTO
    Title: EXCAVATING MACHINE
    Assignee: None
    Issue Date: April 12, 1932
    Inventor(s): John H. OBrien, Osage, WY