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发明名称
Bender
摘要
申请公布号
US1751492(A)
申请公布日期
1930.03.25
申请号
US19270223622
申请日期
1927.10.03
申请人
THE TOLEDO STEEL TUBE COMPANY
发明人
NOWAKOWSKI ALBERT J.
分类号
B21D7/022
主分类号
B21D7/022
代理机构
代理人
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地址
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