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发明名称
METHOD OF BORING WORK FOR DEEP DRAWING PRODUCTS
摘要
申请公布号
JPS5395870(A)
申请公布日期
1978.08.22
申请号
JP19770009634
申请日期
1977.02.02
申请人
HITACHI SHOMEI KK
发明人
KIMURA YOUJI;MORIKAWA YUZURU
分类号
B21D22/26;B21D28/32
主分类号
B21D22/26
代理机构
代理人
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