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发明名称
Appareil de reproduction de sons
摘要
申请公布号
FR804770(A)
申请公布日期
1936.11.02
申请号
FRD804770
申请日期
1936.03.21
申请人
HAZELTINE CORPORATION
发明人
分类号
H04R1/34
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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