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发明名称
MACHINE FOR PRODUCING HELICAL SEAM TUBING
摘要
申请公布号
CA639388(A)
申请公布日期
1962.04.03
申请号
CAD639388
申请日期
申请人
SPIRO ESTABLISHMENT S.A.
发明人
ERLING JENSEN
分类号
主分类号
代理机构
代理人
主权项
地址
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