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发明名称
TONE GENERATING CIRCUIT.
摘要
申请公布号
EP0648364(A1)
申请公布日期
1995.04.19
申请号
EP19940916617
申请日期
1994.04.29
申请人
FEDERAL SIGNAL CORPORATION
发明人
BADER, JOSEPH, E.;WARDZALA, ROBERT, W.
分类号
B06B1/02;(IPC1-7):G10K9/13
主分类号
B06B1/02
代理机构
代理人
主权项
地址
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