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经营范围
发明名称
Improvements in or relating to the tensioning of reinforcing elements for prestressed concrete
摘要
申请公布号
GB676533(A)
申请公布日期
1952.07.30
申请号
GB19490018741
申请日期
1949.07.15
申请人
ERNST BRAUNBOCK
发明人
分类号
B28B23/04;E04G21/12
主分类号
B28B23/04
代理机构
代理人
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