Hakan Andersson

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Malmo, SE

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Patents Grantslast 30 patents

Information Patent Grant
Buzzer with Zener diode in discharge path
- Patent number 6,111,497
- Issue date Aug 29, 2000
- Telefonaktiebolaget LM Ericsson
- Hakan Andersson
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL