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发明名称
摘要
申请公布号
JPH0336304(U)
申请公布日期
1991.04.09
申请号
JP19890095361U
申请日期
1989.08.14
申请人
发明人
分类号
B21B43/00;(IPC1-7):B21B43/00
主分类号
B21B43/00
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代理人
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地址
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