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发明名称
APPARATUS AND METHOD FOR MAKING PRESTRESSED CONCRETE TUBULAR MEMBERS
摘要
申请公布号
CA647874(A)
申请公布日期
1962.09.04
申请号
CAD647874
申请日期
申请人
LOCK JOINT PIPE COMPANY
发明人
DANIEL E. OLIVIER
分类号
主分类号
代理机构
代理人
主权项
地址
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