| 发明名称 |
HOWLER TRUNK |
| 摘要 |
PURPOSE:To obtain a miniature and lightweight device, and to reduce its cost by making it into the electronic constitution. |
| 申请公布号 |
JPS542610(A) |
申请公布日期 |
1979.01.10 |
| 申请号 |
JP19770066698 |
申请日期 |
1977.06.08 |
| 申请人 |
HITACHI LTD;NIPPON TELEGRAPH & TELEPHONE |
发明人 |
TOOYAMA TOSHIAKI;YASUI NAOHIKO |
| 分类号 |
H04Q1/20;H04M3/02;H04M19/02;H04Q3/42 |
主分类号 |
H04Q1/20 |
| 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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