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发明名称
摘要
申请公布号
BE739605(A)
申请公布日期
1970.03.02
申请号
BED739605
申请日期
1969.09.30
申请人
发明人
分类号
B21B27/02;B23P11/02;F16D1/091
主分类号
B21B27/02
代理机构
代理人
主权项
地址
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