EW

Elmer Winckler

UN Unknown: 2 patents #12,644 of 83,584Top 20%
Overall (All Time): #1,260,260 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7125034 Towing hitch assembly 2006-10-24
4911239 Method and apparatus for removal of oil well paraffin James W. McManus 1990-03-27
4538682 Method and apparatus for removing oil well paraffin James W. McManus, James Backus 1985-09-03
4516637 Hoisting apparatus and method for raising oil tubing 1985-05-14