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发明名称
Overtaking signal installation for vehicles
摘要
申请公布号
GB717090(A)
申请公布日期
1954.10.20
申请号
GB19520018697
申请日期
1952.07.23
申请人
WALTER HEIMANN
发明人
分类号
G08B3/10;G08B7/06;H04R1/08;H04R17/10
主分类号
G08B3/10
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