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发明名称
METHOD OF RELIEVING TENSION OF STEEL TENSION MEMBERS WHILE MANUFACTURING PRESTRESSED CONCRETE UNITS
摘要
申请公布号
PL123969(B1)
申请公布日期
1982.12.31
申请号
PL19790218254
申请日期
1979.09.12
申请人
发明人
分类号
B28B;B28B23/02;E04G;E04G21/12;(IPC1-7):B28B23/02
主分类号
B28B
代理机构
代理人
主权项
地址
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