Patent normalization. | observation field completed
|
CN20001003869 | CN20001003869 |
10/03/2000 | 10/03/2000 |
CN1187917 C 02/02/2005 CN1267152 A 20/09/2000 | X |
Spread spectrum multiaddress based on orthogonal frequency division multiplexing tech. | Spread spectrum multiaddress based on orthogonal frequency division multiplexing tech. |
| |
| |
CHINA | CHINA |
| |
US19990267471 | US19990267471 |
LUCENT TECHNOLOGIES INC [US] | LUCENT TECHNOLOGIES INC [US] |
| |
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