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发明名称
Methods of and apparatus for pre-stressing concrete
摘要
申请公布号
GB805656(A)
申请公布日期
1958.12.10
申请号
GB19570006943
申请日期
1957.03.01
申请人
ALEXANDER MANTSCHEFF
发明人
分类号
B28B23/04
主分类号
B28B23/04
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代理人
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