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发明名称
GLEITSCHALUNG ZUR HERSTELLUNG VON BAUWERKEN MIT VERAENDERLICHEM QUERSCHNITT
摘要
申请公布号
DD130065(B1)
申请公布日期
1980.04.30
申请号
DD19770196949
申请日期
1977.01.17
申请人
发明人
分类号
E04G11/20
主分类号
E04G11/20
代理机构
代理人
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