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发明名称
Strip entry equipment for spiral pipe machine
摘要
申请公布号
US3081813(A)
申请公布日期
1963.03.19
申请号
US19590812392
申请日期
1959.05.11
申请人
ACME STEEL COMPANY
发明人
ANDERSON DOUGLAS O.;HALL ROBERT M.
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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