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发明名称
摘要
申请公布号
JPH0242706(U)
申请公布日期
1990.03.23
申请号
JP19880117913U
申请日期
1988.09.09
申请人
发明人
分类号
B21B1/22;B21B39/00;B21B39/08;B21B45/08;(IPC1-7):B21B39/08
主分类号
B21B1/22
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代理人
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