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发明名称
METHOD AND APPARATUS FOR PRODUCING BENT ANGEL PIECES
摘要
申请公布号
GB1581386(A)
申请公布日期
1980.12.10
申请号
GB19770019827
申请日期
1977.05.11
申请人
COIL PROTECTION SERVICE
发明人
分类号
B21D19/04;(IPC1-7):B21D22/16
主分类号
B21D19/04
代理机构
代理人
主权项
地址
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