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发明名称
Anordnung fuer piezoelektrische Oszillatoren in einem verduennten Gase
摘要
申请公布号
DE560481(C)
申请公布日期
1932.10.03
申请号
DENDATT039197D
申请日期
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H03H9/10
主分类号
H03H9/10
代理机构
代理人
主权项
地址
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