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发明名称
IMPROVEMENTS RELATING TO SEMICONDUCTOR DEVICES
摘要
申请公布号
GB1247583(A)
申请公布日期
1971.09.22
申请号
GB19690001378
申请日期
1969.01.09
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
H01L23/544
主分类号
H01L23/544
代理机构
代理人
主权项
地址
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