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发明名称
Helical-seam tube-making installation
摘要
申请公布号
US3210980(A)
申请公布日期
1965.10.12
申请号
US19620224770
申请日期
1962.09.19
申请人
DRIAM S.A.
发明人
SENGEL KURT E.
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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