Adrian Giuhat

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Nepean, CA

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Patents Grantslast 30 patents

Information Patent Grant
Redirection of calls to ported directory numbers in telephone networks
- Patent number 5,881,145
- Issue date Mar 9, 1999
- Northern Telecom Limited
- Adrian Giuhat
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Directory number portability in telephone networks
- Patent number 5,867,570
- Issue date Feb 2, 1999
- Northern Telecom Limited
- Mahmoud N. Bargout
- H04 - ELECTRIC COMMUNICATION TECHNIQUE