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发明名称
SPIEGEL ZUM ERZEUGEN EINES ENTWICKLUNGSBILDES DES WAND EINES LOCHS IM BODEN UND GERÄT ZUM ERZEUGEN DES BILDES
摘要
申请公布号
DE69128240(T2)
申请公布日期
1998.03.19
申请号
DE19916028240T
申请日期
1991.09.26
申请人
RAAX CO. LTD., SAPPORO, HOKKAIDO, JP
发明人
KAMEWADA, SHUNICHI RAAX CO., LTD., SAPPORO-SHI HOKKAIDO 065, JP
分类号
E21B47/00;G02B23/24;(IPC1-7):E21B47/00;E21B49/00;G01N21/00;G02B5/00
主分类号
E21B47/00
代理机构
代理人
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