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发明名称
DIGITAL AUDIBLE TONE GENERATING CIRCUIT
摘要
申请公布号
JPH01220956(A)
申请公布日期
1989.09.04
申请号
JP19880046019
申请日期
1988.02.29
申请人
NEC CORP;NEC ENG LTD
发明人
TAKAHASHI IKUHIRO;ARAI TAKAHIRO
分类号
H04M19/02
主分类号
H04M19/02
代理机构
代理人
主权项
地址
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