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经营范围
发明名称
PIT PROP ACCESSORIES
摘要
申请公布号
ZA8503871(B)
申请公布日期
1986.01.29
申请号
ZA19850003871
申请日期
1985.05.22
申请人
MINING VENTILATION SERVICES (PROPRIETARY) LIMITED
发明人
分类号
E21D
主分类号
E21D
代理机构
代理人
主权项
地址
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