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发明名称
Elektronen emittierender Körper und Verfahren zu seiner Herstellung.
摘要
申请公布号
AT120212(B)
申请公布日期
1930.12.10
申请号
ATD120212
申请日期
1927.04.12
申请人
ANTON LEDERER
发明人
ANTON LEDERER
分类号
主分类号
代理机构
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