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发明名称
VOICE SIGNAL TRANSMISSION CIRCUIT
摘要
申请公布号
JPH01177755(A)
申请公布日期
1989.07.14
申请号
JP19880001231
申请日期
1988.01.08
申请人
HITACHI LTD;HITACHI ENG CO LTD
发明人
KAKIZUME YUJI;YOSHINO HIDEKI;NOGUCHI HIROYUKI;TATSUNAMI KAZUHIRO;OGURA TATSUO;SANBONKAN KOUICHI
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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