Karl D. Hassel, Sr.

📍 Plain City, OH: #70 of 128 inventorsTop 55%

🗺 Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #4,021,197 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4540216	Convertible seat for vehicles	—	1985-09-10