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经营范围
发明名称
Modulationsschaltung
摘要
申请公布号
DE754789(C)
申请公布日期
1954.12.13
申请号
DE1935R096363D
申请日期
1935.05.01
申请人
OPTA RADIO A. G.
发明人
分类号
H03C1/24;H03F1/08;H04N5/40
主分类号
H03C1/24
代理机构
代理人
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地址
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