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Billing based on equivalent quality of service units |
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— |
2003-08-05 |
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Time synchronization of packetized radio signals to base stations |
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2003-03-25 |
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Method to pre-qualify copper loops for ADSL service |
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Ergonomic computer mouse |
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2001-07-17 |
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1997-04-22 |
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Controlling multi-port hunt groups in a distributed control switching system |
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Dial pulse signaling arrangement |
— |
1980-07-29 |
