Norval K. Alfrey

📍 Lake City, FL: #19 of 72 inventorsTop 30%

🗺 Florida: #16,597 of 67,251 inventorsTop 25%

Overall (All Time): #1,671,739 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4867930	Priller method	—	1989-09-19
4652295	Fertilizer manufacture	—	1987-03-24
4564505	Process and apparatus for simultaneous material granulation and classification	—	1986-01-14