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经营范围
发明名称
Tube bender
摘要
申请公布号
US2371695(A)
申请公布日期
1945.03.20
申请号
US19420458255
申请日期
1942.09.14
申请人
BOEING AIRCRAFT COMPANY
发明人
LANCASTER BILLY R.
分类号
B21D7/024
主分类号
B21D7/024
代理机构
代理人
主权项
地址
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