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发明名称
摘要
申请公布号
LU43800(A1)
申请公布日期
1963.07.22
申请号
LUD43800
申请日期
1963.05.22
申请人
发明人
分类号
B21D51/44
主分类号
B21D51/44
代理机构
代理人
主权项
地址
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