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发明名称
Improvements in a method of and apparatus for the manufacture of metal tubes and other tubular metal articles
摘要
申请公布号
GB446099(A)
申请公布日期
1936.04.23
申请号
GB19340030361
申请日期
1934.10.23
申请人
WELLMAN SEAVER ROLLING MILL COMPANY LIMITED;SYDNEY SMITH
发明人
分类号
B21C1/26
主分类号
B21C1/26
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代理人
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