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发明名称
ACOUSTIC SOUND ATTENUATOR
摘要
申请公布号
GB8429664(D0)
申请公布日期
1985.01.03
申请号
GB19840029664
申请日期
1984.11.23
申请人
LAMBE, J C;WARRACK, A
发明人
分类号
H03G3/32
主分类号
H03G3/32
代理机构
代理人
主权项
地址
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