Number | Date | Country | Kind |
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01402301 | Sep 2001 | EP |
Number | Date | Country |
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1 009 148 | Jun 2000 | EP |
2 799 914 | Apr 2001 | FR |
402237358 | Sep 1990 | JP |
Entry |
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Charlet et al. ; Telephone Conference System . . . to identify each current speaker; Apr. 19, 2001; WO 200128214A1. |