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经营范围
发明名称
Rechengerät
摘要
申请公布号
DE4337532(C2)
申请公布日期
1996.10.02
申请号
DE19934337532
申请日期
1993.11.05
申请人
SPECTRA-LEHRMITTEL-VERLAG GMBH, 46286 DORSTEN, DE
发明人
FLOER, JUERGEN, PROF. DR., 58313 HERDECKE, DE
分类号
G09B1/20;G09B19/02;(IPC1-7):G09B1/20
主分类号
G09B1/20
代理机构
代理人
主权项
地址
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