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发明名称
摘要
申请公布号
JPS5245663(B2)
申请公布日期
1977.11.17
申请号
JP19760025476
申请日期
1976.03.08
申请人
发明人
分类号
B21C37/15;B21D51/00
主分类号
B21C37/15
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代理人
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地址
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