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经营范围
发明名称
REINFORCED TIMBER PACK MINE SUPPORT
摘要
申请公布号
ZA9006324(B)
申请公布日期
1991.06.26
申请号
ZA19900006324
申请日期
1990.08.10
申请人
ESTATE LATE DIRK CORNELIUS STEPHANUS VENTER
发明人
DIRK CORNELIUS STEPHANUS VENTER
分类号
E21F
主分类号
E21F
代理机构
代理人
主权项
地址
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