Robert C. MacElvain

📍 Eufaula, AL: #11 of 39 inventorsTop 30%

🗺 Alabama: #3,421 of 10,951 inventorsTop 35%

Overall (All Time): #2,353,519 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4520879	Ratchet and hydraulic seal assembly for rotating hollow shafts	—	1985-06-04
4214984	Magnetic separation	—	1980-07-29