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发明名称
Apparatus for rolling seamless tubes
摘要
申请公布号
US1897770(A)
申请公布日期
1933.02.14
申请号
US19280290863
申请日期
1928.07.06
申请人
JOSE SEVERIN
发明人
SEVERIN JOSE
分类号
B21B19/12
主分类号
B21B19/12
代理机构
代理人
主权项
地址
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