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发明名称
Electronically controlled crosspoint switches
摘要
申请公布号
US3118973(A)
申请公布日期
1964.01.21
申请号
US19590826805
申请日期
1959.07.13
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
KASPER FRANK S.;LAMIN LEONARD
分类号
H03K17/62;H04Q3/52
主分类号
H03K17/62
代理机构
代理人
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地址
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