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发明名称
AUDIBLE ALARM DEVICES
摘要
申请公布号
GB1575550(A)
申请公布日期
1980.09.24
申请号
GB19770042933
申请日期
1977.10.14
申请人
MALLORY & CO INC C
发明人
分类号
G08B17/00;B06B1/02;G08B3/10;G08B21/00;G08B23/00;G10K9/122;(IPC1-7):G10K9/12
主分类号
G08B17/00
代理机构
代理人
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