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经营范围
发明名称
AUDIO TELECONFERENCE SYSTEM
摘要
申请公布号
JPH08204803(A)
申请公布日期
1996.08.09
申请号
JP19950012224
申请日期
1995.01.30
申请人
NEC ENG LTD
发明人
HASHISAKA NORIYOSHI
分类号
H04M1/21;(IPC1-7):H04M1/21
主分类号
H04M1/21
代理机构
代理人
主权项
地址
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