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经营范围
发明名称
Ferromagnetic material
摘要
申请公布号
US2946752(A)
申请公布日期
1960.07.26
申请号
US19560603135
申请日期
1956.08.09
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
JONKER GERARD HEINRICH;WIJN HENRICUS PETRUS JOHANNES;BRAUN POUL BERNARD
分类号
C04B35/26
主分类号
C04B35/26
代理机构
代理人
主权项
地址
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