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发明名称
AUTOMATIC OPENING/CLOSING DEVICE FOR COLLET CHUCK
摘要
申请公布号
JPH05305507(A)
申请公布日期
1993.11.19
申请号
JP19920137982
申请日期
1992.04.30
申请人
NEC CORP
发明人
HAGIWARA HIDEO
分类号
B23B31/16;B23B31/20;(IPC1-7):B23B31/16
主分类号
B23B31/16
代理机构
代理人
主权项
地址
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