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发明名称
摘要
申请公布号
JPS5322053(B1)
申请公布日期
1978.07.06
申请号
JP19690088040
申请日期
1969.11.05
申请人
发明人
分类号
B21C49/00;B65H23/00;B65H23/16;B65H23/188;C23C2/00;(IPC1-7):C23C1/14
主分类号
B21C49/00
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代理人
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