Abraham A. De Keijzer

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Color display tube having improved color selection strucure
- Patent number 4,473,772
- Issue date Sep 25, 1984
- U.S. Philips Corporation
- Abraham A. De Keijzer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color display tube
- Patent number 4,458,174
- Issue date Jul 3, 1984
- U.S. Philips Corporation
- Abraham A. De Keijzer
- H01 - BASIC ELECTRIC ELEMENTS