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发明名称
Perfectionnement aux montures des filières de tréfilage en alliages spéciaux
摘要
申请公布号
FR711090(A)
申请公布日期
1931.09.02
申请号
FRD711090
申请日期
1931.02.13
申请人
COMPAGNIE GENERALE DES FILIERES EN DIAMANT
发明人
分类号
B21C3/12
主分类号
B21C3/12
代理机构
代理人
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