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经营范围
发明名称
Attenuating network
摘要
申请公布号
US2182329(A)
申请公布日期
1939.12.05
申请号
US19370149795
申请日期
1937.06.23
申请人
HAZELTINE CORPORATION
发明人
WHEELER HAROLD A.
分类号
H03G1/04
主分类号
H03G1/04
代理机构
代理人
主权项
地址
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