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发明名称
VOICE INFORMATION TRANSMISSION SYSTEM
摘要
申请公布号
JPH01282955(A)
申请公布日期
1989.11.14
申请号
JP19880110595
申请日期
1988.05.09
申请人
RICOH CO LTD
发明人
MAEDA HIROSHI
分类号
H04M11/00;H04M1/64;H04M1/658;H04M3/42;H04M3/487;H04M3/50;H04M3/533
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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