Winfield S. Frybarger, Jr.

UN Unknown: 1 patents #29,356 of 83,584Top 40%

📍 West Chester, PA: #823 of 1,305 inventorsTop 65%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,125,371 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4238180	Mandrel with identical expanding segments	John Howard Gordon, Ronald L. Roberts	1980-12-09