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发明名称
Appareil pour détecter des ondes sonores
摘要
申请公布号
FR1299378(A)
申请公布日期
1962.07.20
申请号
FR19610872352
申请日期
1961.09.05
申请人
GULTON INDUSTRIES, INC.
发明人
分类号
H04R17/02
主分类号
H04R17/02
代理机构
代理人
主权项
地址
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