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发明名称
Electric selector mechanism
摘要
申请公布号
US1863225(A)
申请公布日期
1932.06.14
申请号
US19300484517
申请日期
1930.09.26
申请人
TELETYPE CORPORATION
发明人
KRUM HOWARD L.
分类号
H04L17/18;H04L17/22
主分类号
H04L17/18
代理机构
代理人
主权项
地址
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