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发明名称
Process for producing seamless tubes
摘要
申请公布号
US2042552(A)
申请公布日期
1936.06.02
申请号
US19340752282
申请日期
1934.11.09
申请人
DEUTSCHE ROHRENWERKE AKTIENGESELLSCHAFT
发明人
ROECKNER MARTIN;SEVERIN JOSE
分类号
B21B19/14
主分类号
B21B19/14
代理机构
代理人
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地址
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