Fred P. Mattson

📍 Elmwood, WI: #2 of 6 inventorsTop 35%

🗺 Wisconsin: #13,258 of 40,088 inventorsTop 35%

Overall (All Time): #1,674,966 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4688375	Mower attachment for farm tractors	—	1987-08-25
D288283	Oil filter mounting bracket	—	1987-02-17
4492632	Adaptor for external oil filter	—	1985-01-08