Jagjit S. Grewal

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Surrey, CA

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Patents Grantslast 30 patents

Information Patent Grant
Intercom/wireless door bell for multi-handset telephone system
- Patent number 7,738,917
- Issue date Jun 15, 2010
- VTech Telecommunications Limited
- Gordon Ryley
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Intercom/wireless door bell for multi-handset telephone system
- Publication number 20070042804
- Publication date Feb 22, 2007
- Gordon Ryley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
User selectable sound enhancement feature
- Publication number 20040131206
- Publication date Jul 8, 2004
- James Cao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE