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经营范围
发明名称
CHAMBERING PIT
摘要
申请公布号
JPS59130995(A)
申请公布日期
1984.07.27
申请号
JP19830004775
申请日期
1983.01.14
申请人
KOKUDO BOUSAI GIJUTSU KK
发明人
SHIN JIYUNSHIYOKU;NAKADA MASANOBU
分类号
E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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