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发明名称
Conveying apparatus for removing roof falls during earth boring
摘要
申请公布号
GB893135(A)
申请公布日期
1962.04.04
申请号
GB19590020532
申请日期
1959.06.16
申请人
UNION CARBIDE CORPORATION
发明人
FELBECK GEORGE THEODORE;HEIMASTER JOHN WILLIAM;NEWLON JOHN DAVIS
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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