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发明名称
Crossbar switching systems
摘要
申请公布号
US2977421(A)
申请公布日期
1961.03.28
申请号
US19560605654
申请日期
1956.08.22
申请人
CHR. GFELLER A. G.
发明人
TRACHSEL FRITZ
分类号
H01H67/26
主分类号
H01H67/26
代理机构
代理人
主权项
地址
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