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发明名称
SPEECH PRIVACY TELEPHONE SET
摘要
申请公布号
JPH04135333(A)
申请公布日期
1992.05.08
申请号
JP19900258399
申请日期
1990.09.27
申请人
NEC CORP;NEC ENG LTD
发明人
NAKAMURA IKUYA;OGIWARA TAKASHI
分类号
H04K1/02;H04L9/24
主分类号
H04K1/02
代理机构
代理人
主权项
地址
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