Per Gunnar Heikkil.ang.

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Lule.ang., SE

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Patents Grantslast 30 patents

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Speech quality measurement in mobile telecommunication networks bas...
- Patent number 6,157,830
- Issue date Dec 5, 2000
- Telefonaktiebolaget LM Ericsson
- Tor Bjorn Minde
- H04 - ELECTRIC COMMUNICATION TECHNIQUE