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经营范围
发明名称
Electric circuits including transistors
摘要
申请公布号
GB785839(A)
申请公布日期
1957.11.06
申请号
GB19540037539
申请日期
1954.12.29
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
H03K3/286
主分类号
H03K3/286
代理机构
代理人
主权项
地址
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