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经营范围
发明名称
Schaltung zur Frequenzvervielfachung
摘要
申请公布号
DE654204(C)
申请公布日期
1937.12.14
申请号
DE1935M132404D
申请日期
1935.10.20
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY, LIMITED
发明人
分类号
H03B19/10;H03B21/01
主分类号
H03B19/10
代理机构
代理人
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