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发明名称
摘要
申请公布号
JPS5325983(B2)
申请公布日期
1978.07.29
申请号
JP19720086599
申请日期
1972.08.31
申请人
发明人
分类号
B21D43/09;B65H20/02
主分类号
B21D43/09
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