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发明名称
ACOUSTIC ALARM
摘要
申请公布号
GB8321694(D0)
申请公布日期
1983.09.14
申请号
GB19830021694
申请日期
1983.08.11
申请人
BENNETT, J;WRIGHT, A J W
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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