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发明名称
Schaltung zur Regelung der Resonanzfrequenz eines elektrischen Schwingungskreises.
摘要
申请公布号
AT152401(B)
申请公布日期
1938.02.10
申请号
ATD152401
申请日期
1936.10.22
申请人
HAZELTINE CORPORATION
发明人
分类号
主分类号
代理机构
代理人
主权项
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