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经营范围
发明名称
MUTING DEVICE
摘要
申请公布号
JPS57130202(A)
申请公布日期
1982.08.12
申请号
JP19810014332
申请日期
1981.02.04
申请人
HITACHI SEISAKUSHO KK
发明人
NAKASHIMA FUJIO;NAKASHIMA KAZUTO
分类号
G11B3/00
主分类号
G11B3/00
代理机构
代理人
主权项
地址
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