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发明名称
摘要
申请公布号
JPH0242717(U)
申请公布日期
1990.03.23
申请号
JP19880121245U
申请日期
1988.09.14
申请人
发明人
分类号
B21D1/06;B21D1/12;(IPC1-7):B21D1/06
主分类号
B21D1/06
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