Frederick B. Fletcher

📍 Wayne, PA: #6 of 17 inventorsTop 40%

🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%

Overall (1982): #65,507 of 81,411Top 85%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4362217	Downhole shearers	—	1982-12-07