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经营范围
发明名称
Electrical method and apparatus
摘要
申请公布号
GB817953(A)
申请公布日期
1959.08.06
申请号
GB19550023300
申请日期
1955.08.12
申请人
PHILCO CORPORATION
发明人
分类号
C25F3/12;H01L21/00
主分类号
C25F3/12
代理机构
代理人
主权项
地址
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