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发明名称
Avertisseur sonore pour voitures automobiles fonctionnant sous l'effet des gaz d'échappement du moteur
摘要
申请公布号
FR730700(A)
申请公布日期
1932.08.19
申请号
FRD730700
申请日期
1932.01.29
申请人
发明人
DECROVILLE HENRI-LOUIS
分类号
G10K5/00
主分类号
G10K5/00
代理机构
代理人
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