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发明名称
Kreuzungsbauwerk und Verfahren zu seiner Herstellung
摘要
申请公布号
DE1658624(A1)
申请公布日期
1970.10.29
申请号
DE19671658624
申请日期
1967.08.22
申请人
POLENSKY & ZOELLNER
发明人
分类号
E01D19/02;E01D21/00
主分类号
E01D19/02
代理机构
代理人
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