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发明名称
Einrichtung zur gleichzeitigen Schwingungserzeugung und Modulation in einer einzigen Röhre.
摘要
申请公布号
AT149760(B)
申请公布日期
1937.05.25
申请号
ATD149760
申请日期
1934.01.23
申请人
HAZELTINE CORPORATION
发明人
分类号
主分类号
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