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发明名称
APPARATUS FOR BENDING STRIP-LIKE PIECE OF MATERIAL INTO A RING
摘要
申请公布号
PL262141(A1)
申请公布日期
1987.11.02
申请号
PL19860262141
申请日期
1986.10.29
申请人
发明人
分类号
B21D11/10;B21D53/16;B21H;(IPC1-7):B21H/
主分类号
B21D11/10
代理机构
代理人
主权项
地址
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