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发明名称
METHOD OF WIDENING APPLICATION RANGE OF SHIELDED ROOF-SUPPORTS AND APPARATUS THEREFOR
摘要
申请公布号
PL251494(A1)
申请公布日期
1986.07.15
申请号
PL19850251494
申请日期
1985.01.08
申请人
ZMECHANIZOWANYCH OBUDOW SCIANO;KOPALNIA WEGLA KAMIENNEGO ZABR
发明人
WOJANOWSKI BOGUSLAW;ANCZOK HUBERT
分类号
E21D;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
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