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发明名称
VORRICHTUNG ZUR SICHERUNG VON GRABENSPRIESSUNGEN
摘要
申请公布号
DE6927637(U)
申请公布日期
1969.11.06
申请号
DE19690027637U
申请日期
1969.07.11
申请人
HANS RIEDTMANN
发明人
HANS RIEDTMANN
分类号
E02D17/08
主分类号
E02D17/08
代理机构
代理人
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地址
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