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发明名称
摘要
申请公布号
JP2828480(B2)
申请公布日期
1998.11.25
申请号
JP19900035634
申请日期
1990.02.16
申请人
SANDEN KK
发明人
SUDO NAOYOSHI
分类号
B21C37/06;B21C37/15;B21D17/00;B21D53/04;B21D53/08;F28D1/053;F28F9/02;(IPC1-7):B21D53/04
主分类号
B21C37/06
代理机构
代理人
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