Albert J. Westerhof

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Weert, NL

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Patents Grantslast 30 patents

Information Patent Grant
Electric lamp having a mirror-coated lamp vessel
- Patent number 4,797,302
- Issue date Jan 10, 1989
- U.S. Philips Corp.
- Johannes W. Ingeveld
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric lamp vessel having a mirror coating with a sharply defined...
- Patent number 4,758,761
- Issue date Jul 19, 1988
- U.S. Philips Corporation
- Johannes W. Ingeveld
- H01 - BASIC ELECTRIC ELEMENTS