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发明名称
Regelbarer Halbleiterwiderstand.
摘要
申请公布号
AT156998(B)
申请公布日期
1939.09.11
申请号
ATD156998
申请日期
1934.10.19
申请人
ELEKTRISCHE GLUEHLAMPENFABRIKEN JOH. KREMENEZKY A. G.
发明人
分类号
主分类号
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