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发明名称
CASCADING CONVEYOR SYSTEM
摘要
申请公布号
ZA7701625(B)
申请公布日期
1978.10.25
申请号
ZA19770001625
申请日期
1977.03.17
申请人
CONSOLIDATION COAL CO
发明人
JAMISON W;HAZEN D
分类号
E21F13/02
主分类号
E21F13/02
代理机构
代理人
主权项
地址
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