Hansjorg Schlaepfer

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Winkel, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method of, and apparatus for, area and air space surveillance
- Patent number 4,780,719
- Issue date Oct 25, 1988
- Contraves AG
- Ernst Frei
- G01 - MEASURING TESTING
Information Patent Grant
Method of increasing the signal-to-noise ratio of a time-dependent...
- Patent number 3,997,774
- Issue date Dec 14, 1976
- Contraves AG
- Hansjorg Schlaepfer
- F41 - WEAPONS