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发明名称
Electromagnetic sound producing horns
摘要
申请公布号
GB832988(A)
申请公布日期
1960.04.21
申请号
GB19560029637
申请日期
1956.09.28
申请人
JOSEPH LUCAS (INDUSTRIES) LIMITED
发明人
GAFFNEY EDWARD NORMAN
分类号
G10K9/12;G10K9/15;G10K9/22
主分类号
G10K9/12
代理机构
代理人
主权项
地址
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