RA

Russell J. Apfel

AM AMD: 2 patents #1 of 6Top 20%
🗺 Texas: #147 of 2,272 inventorsTop 7%
Overall (1982): #8,122 of 81,411Top 10%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4359609 Circuit with feedback for controlling the impedance thereof 1982-11-16
4315207 Current controlled battery feed circuit 1982-02-09