Inventor · disambiguated record
Karl Fredrik Robert Gustafson
Also filed as: GUSTAFSON KARL FREDRIK ROBERT
2 granted patents·5 citations·filing 1995–1995
49Inventor score
Files withERICSSON TELEFON AB L M2
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2 records- 0124US5797095ASupervisory audio tone-signalling tone(SAT-ST) handlingERICSSON TELEFON AB L M·Filed 1995·Granted Aug 18, 1998·2 cites·11 claims
- 0223US5878342ASupervisory audio tone (SAT) approximation in an analog cellular mobile radio telephone systemERICSSON TELEFON AB L M·Filed 1995·Granted Mar 2, 1999·3 cites·15 claims
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