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发明名称
SCREW AUGER
摘要
申请公布号
JPS5934392(A)
申请公布日期
1984.02.24
申请号
JP19820142171
申请日期
1982.08.18
申请人
MARUYASU DOBOKU KK
发明人
WASHIDA SUKEAKI
分类号
E21B6/02;E21B6/00
主分类号
E21B6/02
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代理人
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