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发明名称
Micro-pendule-amplificateur
摘要
申请公布号
FR53518(E)
申请公布日期
1946.03.04
申请号
FRD53518
申请日期
1943.07.15
申请人
发明人
ARRIN EDMOND
分类号
D03C5/02;H04R21/02
主分类号
D03C5/02
代理机构
代理人
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