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发明名称
摘要
申请公布号
JPH0615819(U)
申请公布日期
1994.03.01
申请号
JP19920056864U
申请日期
1992.07.21
申请人
发明人
分类号
B21D11/10;E04B5/40;(IPC1-7):B21D11/10
主分类号
B21D11/10
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代理人
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