Petrus E. J. Legierse

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Optically readable information disc
- Patent number 4,668,549
- Issue date May 26, 1987
- U.S. Philips Corporation
- Gerardus J. M. Lippits
- G11 - INFORMATION STORAGE
Information Patent Grant
Optically readable information disk
- Patent number 4,410,978
- Issue date Oct 18, 1983
- U.S. Philips Corporation
- Arnoldus J. M. vanden Broek
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optically readable information disk
- Patent number 4,389,719
- Issue date Jun 21, 1983
- U.S. Philips Corporation
- Michael J. C. Van de Donk
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY