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发明名称
VOICE CONFERENCE DEVICE
摘要
申请公布号
CA2640967(A1)
申请公布日期
2007.08.09
申请号
CA20072640967
申请日期
2007.01.17
申请人
YAMAHA CORPORATION
发明人
ISHIBASHI, TOSHIAKI
分类号
H04R3/00;H04R1/40;H04R3/02
主分类号
H04R3/00
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代理人
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