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发明名称
Pipe benders
摘要
申请公布号
US3344635(A)
申请公布日期
1967.10.03
申请号
US19640363116
申请日期
1964.04.28
申请人
GREENLEE BROS. & CO.
发明人
ALLEN RICHARD F. VAN
分类号
B21D7/06
主分类号
B21D7/06
代理机构
代理人
主权项
地址
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