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发明名称
IMPROVEMENTS RELATING TO DRILL CHUCK ASSEMBLIES
摘要
申请公布号
ZA7806122(B)
申请公布日期
1979.12.27
申请号
ZA19780006122
申请日期
1978.10.31
申请人
KLOECKNER BECORIT LTD
发明人
WEISBROD G
分类号
E21B19/06;E21B3/00;E21B19/08;E21C
主分类号
E21B19/06
代理机构
代理人
主权项
地址
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