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发明名称
Keyboard perforator transmitter
摘要
申请公布号
US2208037(A)
申请公布日期
1940.07.16
申请号
US19390282359
申请日期
1939.07.01
申请人
TELETYPE CORPORATION
发明人
LAKE ROSS A.
分类号
H04L17/04;H04L17/08
主分类号
H04L17/04
代理机构
代理人
主权项
地址
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