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发明名称
摘要
申请公布号
JPS5713372(B2)
申请公布日期
1982.03.17
申请号
JP19780142580
申请日期
1978.11.17
申请人
发明人
分类号
B21D1/02;B21D1/05;B21D3/02
主分类号
B21D1/02
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代理人
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地址
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