Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Frank Sparhawk 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: 1161743     View patent at USPTO
    Title: AUTOMATIC TRAIN-STOP
    Assignee: None
    Issue Date: November 23, 1915
    Inventor(s): Frank O. Sparhawk, Painter, WY