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发明名称
METHOD OF BURYING AND FIXING STOPPING AND FITTING TOOL TO BASE ROCK, ETC.
摘要
申请公布号
JPS5837300(A)
申请公布日期
1983.03.04
申请号
JP19810133559
申请日期
1981.08.26
申请人
NIHON DORAIBUITSUTO KK
发明人
AOKI TETSUO
分类号
E21D21/00;E21D20/00;E21D20/02
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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