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发明名称
Dispositif de résonance acoustique
摘要
申请公布号
FR1159692(A)
申请公布日期
1958.07.01
申请号
FRD1159692
申请日期
1956.08.10
申请人
WILHELM FRANZ K. G.
发明人
分类号
G10K15/10
主分类号
G10K15/10
代理机构
代理人
主权项
地址
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