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发明名称
METHOD OF MAKING LONG PRESTRESSED CONCRETE UNITS
摘要
申请公布号
PL134224(B1)
申请公布日期
1985.08.31
申请号
PL19820234718
申请日期
1982.01.13
申请人
发明人
分类号
B28B;B28B23/06;(IPC1-7):B28B23/06
主分类号
B28B
代理机构
代理人
主权项
地址
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