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发明名称
Connecting elements for mine roof support members
摘要
申请公布号
GB1000733(A)
申请公布日期
1965.08.11
申请号
GB19650000556
申请日期
1962.02.09
申请人
RHEINSTAHL WANHEIM G.M.B.H.
发明人
分类号
E21D11/36;E21D17/04;E21D17/086
主分类号
E21D11/36
代理机构
代理人
主权项
地址
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