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发明名称
Orientation indicating device
摘要
申请公布号
US2162358(A)
申请公布日期
1939.06.13
申请号
US19350056719
申请日期
1935.12.30
申请人
TELETYPE CORPORATION
发明人
POTTS LOUIS M.
分类号
H04L12/26;H04L25/04
主分类号
H04L12/26
代理机构
代理人
主权项
地址
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