Arie M. Wijnen

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Holargos, GR

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Patents Grantslast 30 patents

Information Patent Grant
Method and an apparatus for preventing unauthorized recording on ta...
- Patent number 5,673,356
- Issue date Sep 30, 1997
- Copyguard Enterprises S.A.
- Arie Marinus Wijnen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and an apparatus for preventing unauthorized copying of vide...
- Patent number 5,481,608
- Issue date Jan 2, 1996
- Copyguard Enterprises
- Arie M. Wijnen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video camera with automatic intensity control
- Patent number 5,101,275
- Issue date Mar 31, 1992
- Copyguard Enterprises S.A.
- Arie M. Wijnen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE