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发明名称
Switching system
摘要
申请公布号
US2809296(A)
申请公布日期
1957.10.08
申请号
US19530367947
申请日期
1953.07.14
申请人
GENERAL ELECTRIC COMPANY
发明人
JR. ROBERT GODBARSEN,
分类号
H01J47/12;H05G1/44
主分类号
H01J47/12
代理机构
代理人
主权项
地址
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