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发明名称
Teletypewriter apparatus
摘要
申请公布号
US2173170(A)
申请公布日期
1939.09.19
申请号
US19380200665
申请日期
1938.04.07
申请人
BELL TELEPHONE LABORATORIES INCORPORATED
发明人
KINKEAD FULLERTON S.
分类号
H04L17/30
主分类号
H04L17/30
代理机构
代理人
主权项
地址
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