Fred H. Hoffken

📍 Newtown Square, PA: #4 of 8 inventorsTop 50%

🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%

Overall (1989): #136,923 of 140,708Top 100%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4831771	Spool holder and spool	—	1989-05-23