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经营范围
发明名称
Expanseur sonore
摘要
申请公布号
FR997892(A)
申请公布日期
1952.01.11
申请号
FRD997892
申请日期
1945.08.24
申请人
SADIR-CARPENTIER
发明人
PERRENOT CLAUDE;GUIRIMAND RAYMOND
分类号
H03G7/02
主分类号
H03G7/02
代理机构
代理人
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地址
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