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发明名称
Machine for shaping metal tubes
摘要
申请公布号
US1888807(A)
申请公布日期
1932.11.22
申请号
US19320599683
申请日期
1932.03.18
申请人
THE AVIATION PATENT AND RESEARCH CORPORATION
发明人
RIVERS ELMER JAMES
分类号
B21C37/15
主分类号
B21C37/15
代理机构
代理人
主权项
地址
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