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经营范围
发明名称
Boring apparatus
摘要
申请公布号
US4955951(A)
申请公布日期
1990.09.11
申请号
US19890316298
申请日期
1989.02.27
申请人
SEKI KAIHATSU KOKI;NEMOTO KIKAKU KOGYO KK
发明人
NEMOTO, ISAO;YAMAOKA, YUJI
分类号
B23B41/08;B23B41/00;B23B49/00;F16L47/00;F16L55/18;F16L55/26
主分类号
B23B41/08
代理机构
代理人
主权项
地址
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