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发明名称
TIEFSCHACHTRAHMEN FUER AUSSCHACHTUNGEN IM KANALISATIONSBAU.
摘要
申请公布号
DE1811797(U)
申请公布日期
1960.05.19
申请号
DE196000L5993U
申请日期
1960.02.22
申请人
HERMANN LAATZEN
发明人
HERMANN LAATZEN
分类号
主分类号
代理机构
代理人
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