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发明名称
Machine for fabricating tubular metal structures
摘要
申请公布号
US1866610(A)
申请公布日期
1932.07.12
申请号
US19280244336
申请日期
1928.01.03
申请人
GRAVER CORPORATION
发明人
JR. JAMES LUCIAN ADAMS,
分类号
B21D51/00;B21D51/18
主分类号
B21D51/00
代理机构
代理人
主权项
地址
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