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发明名称
Dispositif pour la production de vibrations sonores d'une fréquence déterminée à l'aide d'un sifflet
摘要
申请公布号
FR850328(A)
申请公布日期
1939.12.14
申请号
FRD850328
申请日期
1939.02.15
申请人
ATLAS-WERKE AKTIENGESELLSCHAFT
发明人
分类号
G10K5/00;G10K11/28
主分类号
G10K5/00
代理机构
代理人
主权项
地址
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