Marvin R. Hall

📍 Kansas, OK: #2 of 5 inventorsTop 40%

🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%

Overall (All Time): #4,039,124 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4464854	Correctional collar	—	1984-08-14