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发明名称
Hilfsvorrichtung zum freien Vorpfaenden von Gelenkkappen im Streb mit metallischem Grubenausbau
摘要
申请公布号
DE977121(C)
申请公布日期
1965.03.11
申请号
DE1951G006797
申请日期
1951.08.19
申请人
GERLACH KARL;DR.-ING. HANS GERLACH
发明人
GERLACH KARL;RUTKOWSKI HANS
分类号
E21D17/02
主分类号
E21D17/02
代理机构
代理人
主权项
地址
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