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发明名称
Perfectionnement aux dispositifs émetteurs de signaux sonores à vent
摘要
申请公布号
FR907973(A)
申请公布日期
1946.03.27
申请号
FRD907973
申请日期
1944.06.30
申请人
ANCIENS ETABLISSEMENTS SAUTTER-HARLE
发明人
分类号
G10K7/06
主分类号
G10K7/06
代理机构
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