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发明名称
Ruf- und Signalmaschine
摘要
申请公布号
DE810777(C)
申请公布日期
1951.08.13
申请号
DE1950SC01380
申请日期
1950.03.04
申请人
SCHMIDT KARL DR.-ING.
发明人
SCHMIDT KARL DR.-ING.
分类号
H02K47/02;H04M19/02
主分类号
H02K47/02
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