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发明名称
Ferrospinel compositions
摘要
申请公布号
US2723239(A)
申请公布日期
1955.11.08
申请号
US19520312089
申请日期
1952.09.29
申请人
RADIO CORPORATION OF AMERICA
发明人
HARVEY ROBERT L.
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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