| 发明名称 |
CONNECTION CLASSIFICATION METHOD |
| 摘要 |
PURPOSE:Not only to lighten the operator's handling but also to improve the service to the extension of the guest room, by classifying the connection in accordance with the kinds of the extensions. |
| 申请公布号 |
JPS549507(A) |
申请公布日期 |
1979.01.24 |
| 申请号 |
JP19770074460 |
申请日期 |
1977.06.24 |
| 申请人 |
HITACHI LTD |
发明人 |
FUJII AKIRA;KONDOU YASUHIRO |
| 分类号 |
H04M3/58;H04M3/42;H04M3/60;H04Q3/58;H04Q3/62 |
主分类号 |
H04M3/58 |
| 代理机构 |
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代理人 |
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| 地址 |
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