Frederick D. Niehaus

📍 Martelle, IA: #3 of 3 inventorsTop 100%

🗺 Iowa: #8,735 of 15,303 inventorsTop 60%

Overall (All Time): #4,010,302 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4499908	Combine concave structure	—	1985-02-19