Ted. R. Ehrenfield

📍 Newport News, VA: #8 of 43 inventorsTop 20%

🗺 Virginia: #200 of 1,067 inventorsTop 20%

Overall (1989): #32,520 of 140,708Top 25%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4848737	Cardiovascular exercise ladder	—	1989-07-18