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发明名称
USUNIKUKINZOKUKANNOSEIZOHOHO
摘要
申请公布号
JP2640541(B2)
申请公布日期
1997.08.13
申请号
JP19890255165
申请日期
1989.10.02
申请人
NITSUSHIN SEIKO KK
发明人
NAKAKO TAKEFUMI;MIURA NORIMASA
分类号
B21C37/30;B21D3/05;B23K31/00;(IPC1-7):B21C37/30
主分类号
B21C37/30
代理机构
代理人
主权项
地址
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