Richard J. Duchek

Follow

Person

Schaumburg, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for direct contact printing screens on CRT fac...
- Patent number 5,343,803
- Issue date Sep 6, 1994
- Zenith Electronics Corporation
- Richard J. Duchek
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
System for registering and assembling tension masks and CRT faceplates
- Patent number 5,167,558
- Issue date Dec 1, 1992
- Zenith Electronics Corporation
- Richard J. Duchek
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power bridge rectifier assembly
- Patent number 4,724,474
- Issue date Feb 9, 1988
- Zenith Electronics Corporation
- Richard J. Duchek
- H01 - BASIC ELECTRIC ELEMENTS