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发明名称
ELECTRIC SOUND-PRODUCING DEVICE
摘要
申请公布号
GB1376433(A)
申请公布日期
1974.12.04
申请号
GB19710010310
申请日期
1971.04.20
申请人
ABSALOM R R
发明人
分类号
B06B1/02;G08B3/10;G10K9/12;(IPC1-7):G10K9/12
主分类号
B06B1/02
代理机构
代理人
主权项
地址
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