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经营范围
发明名称
BIDIRECTIONAL SPEECH EQUIPMENT
摘要
申请公布号
JPH01117530(A)
申请公布日期
1989.05.10
申请号
JP19870275184
申请日期
1987.10.30
申请人
YOKOGAWA MEDICAL SYST LTD
发明人
SHIMIZU TORU
分类号
H04B3/20
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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