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发明名称
Mehrfachröhre.
摘要
申请公布号
AT119218(B)
申请公布日期
1930.10.10
申请号
ATD119218
申请日期
1929.04.11
申请人
DR. SIEGMUND LOEWE;DR. EDGAR ROEMHILD
发明人
DR. SIEGMUND LOEWE;DR. EDGAR ROEMHILD
分类号
主分类号
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