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经营范围
发明名称
Nouveau procédé de préparation de plaques, billettes, etc., de métaux légers àhaute résistance en vue de leur laminage
摘要
申请公布号
FR720377(A)
申请公布日期
1932.02.18
申请号
FRD720377
申请日期
1930.10.25
申请人
SOCIETE DES BREVETS BERTHELEMY-DE MONTBY
发明人
分类号
C22F1/04
主分类号
C22F1/04
代理机构
代理人
主权项
地址
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