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经营范围
发明名称
Hohlstufentreppe aus Fertigbetonteilen fuer veraenderliche Steigungen
摘要
申请公布号
DE809483(C)
申请公布日期
1951.07.30
申请号
DE1950F000936
申请日期
1950.03.03
申请人
FIENE HERMANN
发明人
FIENE HERMANN
分类号
E04F11/116
主分类号
E04F11/116
代理机构
代理人
主权项
地址
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