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发明名称
FREMGANGSMAADE OG VAERKTOEJ TIL BRUG VED BORING AF ET HUL I ARMERET BETON
摘要
申请公布号
DK56178(A)
申请公布日期
1979.08.08
申请号
DK19780000561
申请日期
1978.02.07
申请人
NIELSEN M B
发明人
NIELSEN M B
分类号
B28D1/14;E21B7/00;E21B10/00;E21B17/10;E21B29/00;(IPC1-7):B25D/
主分类号
B28D1/14
代理机构
代理人
主权项
地址
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