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经营范围
发明名称
Ultra short wave circuit
摘要
申请公布号
US2143671(A)
申请公布日期
1939.01.10
申请号
US19370146413
申请日期
1937.06.04
申请人
RADIO CORPORATION
发明人
ZOTTU PAUL D.
分类号
H03F3/54
主分类号
H03F3/54
代理机构
代理人
主权项
地址
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