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经营范围
发明名称
Procédé pour augmenter la résistance d'adhérence de fils d'acier dans la confection de pièces en béton à tension préalable
摘要
申请公布号
FR887116(A)
申请公布日期
1943.11.04
申请号
FRD887116
申请日期
1942.10.24
申请人
发明人
HOYER EWALD
分类号
E04C5/12
主分类号
E04C5/12
代理机构
代理人
主权项
地址
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