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经营范围
发明名称
Ferromagnetic material
摘要
申请公布号
US3046227(A)
申请公布日期
1962.07.24
申请号
US19580768039
申请日期
1958.10.20
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
GORTER EVERT WILLEM;LOTGERING FREDERIK KAREL;BLEJERS HUGO GERRIT
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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