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发明名称
ELECTRONIC SWITCHING TELEPHONE SYSTEM
摘要
申请公布号
CA754677(A)
申请公布日期
1967.03.14
申请号
CAD754677
申请日期
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
ROGER E. ARSENEAU;JOHN BEREZNAK;PETER E. OSBORN
分类号
主分类号
代理机构
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