John C. Bertelsen

UN Unknown: 1 patents #29,356 of 83,584Top 40%

📍 Dexter, MI: #160 of 334 inventorsTop 50%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #2,343,685 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4678489	Filtering system for paper handling machines	—	1987-07-07
4563943	Filter apparatus for high speed printers	—	1986-01-14