John B. McMackin

RC Rca: 1 patents #133 of 435Top 35%

📍 Essington, PA: #1 of 2 inventorsTop 50%

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

Overall (1982): #16,906 of 81,411Top 25%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4325021	Regulated switching apparatus	—	1982-04-13