Patent normalization. | Automatic patent import |
US20090351926 | US20090351926 |
12/01/2009 | 12/01/2009 |
US2009225879 A1 10/09/2009 | US8995548 B2 31/03/2015 US2009225879 A1 10/09/2009 |
METHOD AND APPARATUS FOR CHANNEL SOUNDING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM | METHOD AND APPARATUS FOR CHANNEL SOUNDING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM |
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UNITED STATES | UNITED STATES |
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US20080035241P;US20090351926 | US20080035241P;US20090351926 |
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