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发明名称
Signalvorrichtung
摘要
申请公布号
DE522046(C)
申请公布日期
1931.03.30
申请号
DE1929M113230D
申请日期
1929.12.22
申请人
GEORG E. MATHIASEN
发明人
分类号
D06F39/00
主分类号
D06F39/00
代理机构
代理人
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