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发明名称
DRILLING AGENT
摘要
申请公布号
CS263658(B1)
申请公布日期
1989.04.14
申请号
CS19860008447
申请日期
1986.11.20
申请人
FRAJER MILOS,CS;KUCERA RUDOLF,CS
发明人
FRAJER MILOS,CS;KUCERA RUDOLF,CS
分类号
B23B47/28;(IPC1-7):B23B47/28
主分类号
B23B47/28
代理机构
代理人
主权项
地址
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