Walter J. Feller

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Kanata, CA

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Patents Grantslast 30 patents

Information Patent Grant
Perimeter intrusion detection system with block ranging capabilities
- Patent number 4,887,069
- Issue date Dec 12, 1989
- Control Data Canada Limited
- Melvin C. Maki
- G08 - SIGNALLING
Information Patent Grant
Intrusion detection system
- Patent number 4,879,544
- Issue date Nov 7, 1989
- Control Data Canada Limited
- Melvin C. Maki
- G08 - SIGNALLING