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发明名称
Precision pipe advancement mechanism for bending machine
摘要
申请公布号
US3009508(A)
申请公布日期
1961.11.21
申请号
US19580718836
申请日期
1958.03.03
申请人
KELLEY FORREST H
发明人
KELLEY FORREST H.
分类号
B21D7/16
主分类号
B21D7/16
代理机构
代理人
主权项
地址
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