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发明名称
Apparatus for and method of making tapered tubular poles
摘要
申请公布号
US1746281(A)
申请公布日期
1930.02.11
申请号
US19270208491
申请日期
1927.07.26
申请人
THE UNION METAL MANUFACTURING COMPANY
发明人
RIEMENSCHNEIDER EDMUND W.
分类号
B21C37/18
主分类号
B21C37/18
代理机构
代理人
主权项
地址
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