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发明名称
PERFURATRIZ PARA ROCHA
摘要
申请公布号
BR7901267(A)
申请公布日期
1979.10.09
申请号
BR19790001267
申请日期
1979.03.01
申请人
HAWERA PROBST GMBH & CO
发明人
KLAISSLE S;PEETZ W
分类号
B28D1/14;B23B51/04;E21B10/00;E21B10/04;E21B10/44;(IPC1-7):E21C1/12;E21C7/04
主分类号
B28D1/14
代理机构
代理人
主权项
地址
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