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经营范围
发明名称
Perfectionnements à la fabrication de poudre magnétique
摘要
申请公布号
FR939197(A)
申请公布日期
1948.11.05
申请号
FRD939197
申请日期
1946.07.04
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
WESTON WILLIAM KIRBY;BUCKLEY SYDNEY ERNEST;JOHNSTON THOMAS
分类号
B22F9/08
主分类号
B22F9/08
代理机构
代理人
主权项
地址
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