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经营范围
发明名称
SOUNDING BODY
摘要
申请公布号
JPH0370396(A)
申请公布日期
1991.03.26
申请号
JP19890207411
申请日期
1989.08.10
申请人
NKK CORP
发明人
ITO TOMIO
分类号
H04R1/44;G01S7/52;G01S7/521
主分类号
H04R1/44
代理机构
代理人
主权项
地址
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