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发明名称
SPRING CLIP
摘要
申请公布号
ZA8700805(B)
申请公布日期
1987.09.30
申请号
ZA19870000805
申请日期
1987.02.04
申请人
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED
发明人
PETER NOEL TOMLINSON;KLAUS TANK
分类号
E21C;F16B
主分类号
E21C
代理机构
代理人
主权项
地址
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