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发明名称
METHOD OF CONSTRUCTION OF SHAFT
摘要
申请公布号
JPS6378995(A)
申请公布日期
1988.04.09
申请号
JP19860222549
申请日期
1986.09.19
申请人
KIDO GIJUTSU KENKYUSHO:KK
发明人
KIMURA KOICHI
分类号
E21D5/00
主分类号
E21D5/00
代理机构
代理人
主权项
地址
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Anordning för luftning, företrädesvis av avloppsvatten
