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经营范围
发明名称
DRILLING DEVICE FOR PIPE
摘要
申请公布号
JPH0639613(A)
申请公布日期
1994.02.15
申请号
JP19920196715
申请日期
1992.07.23
申请人
YANO GIKEN KK
发明人
YOKOYAMA GUNPEI
分类号
B23B41/08;B23B51/04;F16L41/04;(IPC1-7):B23B41/08
主分类号
B23B41/08
代理机构
代理人
主权项
地址
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