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经营范围
发明名称
Récipient isolé acoustiquement
摘要
申请公布号
FR761003(A)
申请公布日期
1934.03.08
申请号
FRD761003
申请日期
1933.09.21
申请人
SUBMARINE SIGNAL COMPANY
发明人
分类号
G10K11/00
主分类号
G10K11/00
代理机构
代理人
主权项
地址
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