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发明名称
Vorrichtung zur hydraulischen Betaetigung der Verriegelung von einem rueckbaren Abstuetzelement fuer den Strebausbau freitragend vorgepfaendeter Kappen
摘要
申请公布号
DE1158467(B)
申请公布日期
1963.12.05
申请号
DE1960G030180
申请日期
1960.07.28
申请人
DIPL.-ING. KARL MARIA GROETSCHEL
发明人
GROETSCHEL DIPL.-ING. KARL MARIA
分类号
E21D17/02
主分类号
E21D17/02
代理机构
代理人
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