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发明名称
Improvements relating to modulating apparatus
摘要
申请公布号
GB711658(A)
申请公布日期
1954.07.07
申请号
GB19520010407
申请日期
1952.04.25
申请人
FERRANTI LIMITED
发明人
ROBERTS WALTER GEORGE FRANCIS
分类号
H03C1/00
主分类号
H03C1/00
代理机构
代理人
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