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发明名称
COAL PICK SECURING DEVICES
摘要
申请公布号
GB8408147(D0)
申请公布日期
1984.05.10
申请号
GB19840008147
申请日期
1984.03.29
申请人
WIMET MINING LTD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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