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发明名称
Rotary apparatus
摘要
申请公布号
USRE33613(E)
申请公布日期
1991.06.18
申请号
US19890402658
申请日期
1989.09.05
申请人
发明人
分类号
B21D28/36
主分类号
B21D28/36
代理机构
代理人
主权项
地址
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