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发明名称
Bracket
摘要
申请公布号
GB2058551(A)
申请公布日期
1981.04.15
申请号
GB19790031967
申请日期
1979.09.14
申请人
WOLSEY EMERGENCY AUDIO COMMUNICATIONS LTD
发明人
分类号
H04R1/02;(IPC1-7):H04R1/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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