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发明名称
Process for prestressing cement products
摘要
申请公布号
GB681951(A)
申请公布日期
1952.10.29
申请号
GB19500025259
申请日期
1950.10.17
申请人
JAMES ARTHUR SOURWINE
发明人
分类号
B28B23/04;C04B28/02;E04C5/01
主分类号
B28B23/04
代理机构
代理人
主权项
地址
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