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发明名称
摘要
申请公布号
JPS5648405(Y2)
申请公布日期
1981.11.12
申请号
JP19780032217U
申请日期
1978.03.14
申请人
发明人
分类号
B21C49/00;B65H20/26;B65H75/38;(IPC1-7):B21C49/00
主分类号
B21C49/00
代理机构
代理人
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地址
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