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发明名称
Continuous miner having pivotal flaps between gear and conveyor trough
摘要
申请公布号
US3339982(A)
申请公布日期
1967.09.05
申请号
US19670614652
申请日期
1967.02.08
申请人
NATIONAL MINE SERVICE COMPANY
发明人
JR. JERRY KARLOVSKY,;CONWAY CLIFFORD C.;COOKSON JOHN M.
分类号
E21C27/10
主分类号
E21C27/10
代理机构
代理人
主权项
地址
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