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发明名称
Tuning and selectivity control
摘要
申请公布号
US2148633(A)
申请公布日期
1939.02.28
申请号
US19370170143
申请日期
1937.10.21
申请人
HAZELTINE CORPORATION
发明人
MACDONALD WILLIAM A.
分类号
H03J5/24
主分类号
H03J5/24
代理机构
代理人
主权项
地址
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