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经营范围
发明名称
Dispositif utilisable en combinaison avec un récepteur radiophonique, de télévision, etc.
摘要
申请公布号
FR832301(A)
申请公布日期
1938.09.26
申请号
FRD832301
申请日期
1938.01.20
申请人
发明人
SCHWARZWALD ADOLF
分类号
H03J1/04
主分类号
H03J1/04
代理机构
代理人
主权项
地址
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