Frank D. Marschka

RC Rca: 3 patents #426 of 1,739Top 25%

🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%

Overall (All Time): #1,683,841 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4414485	Control-screen electrode subassembly for an electron gun and method for constructing the same	—	1983-11-08
4350925	Main lens assembly for an electron gun	—	1982-09-21
4344015	Screen contact means for a cathode ray tube	—	1982-08-10