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发明名称
ELECTRONIC SWITCHING NETWORK
摘要
申请公布号
CA665906(A)
申请公布日期
1963.07.02
申请号
CAD665906
申请日期
申请人
SPERRY RAND CORPORATION
发明人
DAVID P. GOODWIN;RICHARD W. SPENCER
分类号
主分类号
代理机构
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