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发明名称
Raeum- und Foerdereinrichtung zum grabenlosen Verlegen von Betonrohren
摘要
申请公布号
DE1811449(A1)
申请公布日期
1970.06.18
申请号
DE19681811449
申请日期
1968.11.28
申请人
CELLER MASCHINEN-FABRIK GEBR.SCHAEFER
发明人
BOESE,WERNER
分类号
E21D9/08;E21D9/12
主分类号
E21D9/08
代理机构
代理人
主权项
地址
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