William R. Fredrick

📍 Mantoloking, NJ: #10 of 15 inventorsTop 70%

🗺 New Jersey: #41,174 of 69,400 inventorsTop 60%

Overall (All Time): #3,903,799 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4928927	Lifting mechanism for heavy street gratings	Robert H. Stuhler	1990-05-29