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发明名称
DOWNWARDLY PROPAGATING PILLAR WORKING
摘要
申请公布号
AU639999(B2)
申请公布日期
1993.08.12
申请号
AU19910075937
申请日期
1991.04.26
申请人
OUTOKUMPU OY
发明人
PENTTI SAKARI SEPPANEN;LARS-ERIK AARO;DAVID RAGNAR LINDQVIST;KARL-ERIK MARTTALA;NILS EDVALD EDEBLOM
分类号
E21C41/16;E21C41/22
主分类号
E21C41/16
代理机构
代理人
主权项
地址
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