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经营范围
发明名称
A MINE PROP AND ITS METHOD OF MANUFACTURE
摘要
申请公布号
ZA8005978(B)
申请公布日期
1981.09.30
申请号
ZA19800005978
申请日期
1980.09.26
申请人
NICOLL A LTD
发明人
NICOLL A
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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