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发明名称
Perfectionnements apportés aux procédés et appareils pour l'obtention de fer ou métaux ferromagnétiques en poudre
摘要
申请公布号
FR853112(A)
申请公布日期
1940.03.11
申请号
FRD853112
申请日期
1939.04.14
申请人
ASSOCIATION DES OUVRIERS EN INSTRUMENTS DE PRECISION
发明人
分类号
B22F9/22
主分类号
B22F9/22
代理机构
代理人
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地址
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