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发明名称
MULTI-SPINDLE BORING DEVICE FOR WEB OF H-SECTION STEEL
摘要
申请公布号
JPS6316909(A)
申请公布日期
1988.01.23
申请号
JP19860157511
申请日期
1986.07.04
申请人
TOMOEGUMI IRON WORKS LTD;MIYAGAWA KOGYO KK
发明人
ISHIZU HARUO;MIYAGAWA EIJI
分类号
B23B41/00
主分类号
B23B41/00
代理机构
代理人
主权项
地址
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