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发明名称
PUNCH
摘要
申请公布号
PL293251(A1)
申请公布日期
1992.10.05
申请号
PL19920293251
申请日期
1992.01.22
申请人
DYCKERHOFF & WIDMANN AG
发明人
SHAWWAF KHALED;HERBST THOMAS;WLODKOWSKI JOHANN;BRANDON RAY
分类号
E21D15/22;(IPC1-7):E21D15/26
主分类号
E21D15/22
代理机构
代理人
主权项
地址
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