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发明名称
Modulator
摘要
申请公布号
US2120882(A)
申请公布日期
1938.06.14
申请号
US19350013527
申请日期
1935.03.28
申请人
STUART BALLANTINE
发明人
BALLANTINE STUART
分类号
H03C1/52
主分类号
H03C1/52
代理机构
代理人
主权项
地址
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