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发明名称
SCRAPER INSTALLATIONS
摘要
申请公布号
ZA8003499(B)
申请公布日期
1981.06.24
申请号
ZA19800003499
申请日期
1980.06.12
申请人
ROCKRIDGE DEVELOPMENT AND MINING EQUIPMENT LTD
发明人
VAN DER MERWE A
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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