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发明名称
TELEGRAPH SWITCHING SYSTEM
摘要
申请公布号
CA330584(A)
申请公布日期
1933.02.28
申请号
CAD330584
申请日期
申请人
THE TELETYPE CORPORATION
发明人
DAVID S. HULFISH;EDWARD E. KLEINSCHMIDT
分类号
主分类号
代理机构
代理人
主权项
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