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发明名称
Apparatus for bending angle irons
摘要
申请公布号
US1773430(A)
申请公布日期
1930.08.19
申请号
US19270241953
申请日期
1927.12.22
申请人
MCDONNELL THOMAS A
发明人
MCDONNELL THOMAS A.
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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