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发明名称
Pipe bending machine
摘要
申请公布号
US2334661(A)
申请公布日期
1943.11.16
申请号
US19420431624
申请日期
1942.02.20
申请人
PROVIDENT TRUST COMPANY
发明人
WEIMER RUSSELL M.
分类号
B21D7/022
主分类号
B21D7/022
代理机构
代理人
主权项
地址
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