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发明名称
Improvements relating to sound producing apparatus particularly for motor vehicles
摘要
申请公布号
GB491510(A)
申请公布日期
1938.09.05
申请号
GB19370006294
申请日期
1937.03.03
申请人
JOSEPH LUCAS LIMITED;THOMAS ALFRED HARRIS
发明人
分类号
G10K9/22
主分类号
G10K9/22
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