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发明名称
VERFAHREN ZUM DURCHPRESSEN VON SCHUTZROHREN BEI TELESKOPDURCHBOHRUNGEN
摘要
申请公布号
DD152603(A1)
申请公布日期
1981.12.02
申请号
DD19800223244
申请日期
1980.08.11
申请人
SCHICK,WILHELM,DD;LORBER,KLAUS,DD
发明人
SCHICK,WILHELM,DD;LORBER,KLAUS,DD
分类号
E21D9/00;(IPC1-7):E21D9/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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