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发明名称
Post-tensioned prestressed concrete members
摘要
申请公布号
US3300921(A)
申请公布日期
1967.01.31
申请号
US19610151633
申请日期
1961.11.13
申请人
THE PRESCON CORPORATION
发明人
MIDDENDORF KARL H.
分类号
B28B23/04;E04C5/12
主分类号
B28B23/04
代理机构
代理人
主权项
地址
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