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发明名称
Vorrichtung zum Vortreiben von kreis- oder halbkreisfoermigen Strecken oder Tunneln mittels einer Schraemmaschine, die mit schwenkbarem Schraemkettenausleger ausgeruestet ist
摘要
申请公布号
DE1286480(B)
申请公布日期
1969.01.09
申请号
DE1968E035555
申请日期
1968.01.12
申请人
GEBR. EICKHOFF, MASCHINENFABRIK;EISENGIESSEREI MBH
发明人
FRENYO;PAL DIPL.-ING.;HEINZ HILPERT,;REIMUND KARKUTT,;WERNER FERNHOLZ,
分类号
E21D9/10
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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