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发明名称
Printing telegraph error detecting system
摘要
申请公布号
US2281745(A)
申请公布日期
1942.05.05
申请号
US19390274535
申请日期
1939.05.19
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
BUCKINGHAM WILLIAM D.
分类号
H04L1/00
主分类号
H04L1/00
代理机构
代理人
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地址
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