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经营范围
发明名称
SOUND ACCUMULATOR
摘要
申请公布号
JPH03244258(A)
申请公布日期
1991.10.31
申请号
JP19900039849
申请日期
1990.02.22
申请人
NEC CORP;NEC ENG LTD
发明人
HIROTA HARUMI;HAYAKAWA YURIKO
分类号
H04M3/42;H04M3/533
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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