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发明名称
HILFSEINRICHTUNG ZUR SICHERUNG VON BRUECKEN
摘要
申请公布号
DD280662(A3)
申请公布日期
1990.07.18
申请号
DD19870305470
申请日期
1987.07.29
申请人
VEB AUTOBAHNBAUKOMBINAT,DD
发明人
ETTRICH,ADOLF,DD;SPIECK,GUENTER,DD
分类号
(IPC1-7):E01D21/02
主分类号
(IPC1-7):E01D21/02
代理机构
代理人
主权项
地址
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