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发明名称
Zeitschalter
摘要
申请公布号
DE690298(C)
申请公布日期
1940.04.22
申请号
DE193801K0851D
申请日期
1938.06.02
申请人
HEINRICH KRATZ
发明人
KRATZ HEINRICH
分类号
G04F1/00
主分类号
G04F1/00
代理机构
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