| 发明名称 |
SUPERVISORY ARRANGEMENT FOR DETECTING FAULTS IN MEANS FOR SELECTING CROSSING POINTS CORRESPONDING TO SWITCHING MEANS IN A READING MATRIX IN A TELECOMMUNICATION SYSTEM CONTROLLED BY COMPUTERS |
| 摘要 |
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| 申请公布号 |
US3492446(A) |
申请公布日期 |
1970.01.27 |
| 申请号 |
USD3492446 |
申请日期 |
1966.02.16 |
| 申请人 |
TELEFON AB. LM ERICSSON |
发明人 |
VILNIS LAPSEVSKIS;AKE BERTIL FREDRIK SVENSSON |
| 分类号 |
H04Q3/545;(IPC1-7):H04M3/22 |
主分类号 |
H04Q3/545 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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