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发明名称
Multiswitch for internally selectively interconnecting vertical multiples to accomplish primary and secondary connections
摘要
申请公布号
US3375330(A)
申请公布日期
1968.03.26
申请号
US19630329835
申请日期
1963.12.11
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
GIBSON JOHN CLARKE
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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地址
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