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发明名称
Beam bending machine
摘要
申请公布号
US2947344(A)
申请公布日期
1960.08.02
申请号
US19580723931
申请日期
1958.03.25
申请人
SPRINGER DON M
发明人
SPRINGER DON M.
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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