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发明名称
Switching equipment
摘要
申请公布号
US2713119(A)
申请公布日期
1955.07.12
申请号
US19520300051
申请日期
1952.07.21
申请人
BENJAMIN ADLER
发明人
ADLER BENJAMIN
分类号
H03K17/54;H04N5/268
主分类号
H03K17/54
代理机构
代理人
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地址
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