James I. R. Butcher

ON Onan: 1 patents #39 of 81Top 50%

📍 Anoka, MN: #126 of 225 inventorsTop 60%

🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #3,819,252 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5193501	Method for assembling and preloading shaft assemblies in reciprocating internal combustion engines	Anthony T. Klejeski, Curtis D. Leaf	1993-03-16