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发明名称
DIAMOND TIPPED BORING TOOL
摘要
申请公布号
PL238293(A1)
申请公布日期
1984.03.26
申请号
PL19820238293
申请日期
1982.09.21
申请人
OS BAD ROZWOJOWY TECH GEO
发明人
KROL ANDRZEJ;NATORSKI CZESLAW;PASTUSZAK STANISLAW
分类号
E21B;E21B10/46;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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