| 发明名称 |
IMPELLER FOR CROSS FLOW FAN |
| 摘要 |
A telephone system is provided with a bilateral telephone call transfer apparatus (9) which is capable of bilateral transfer of a call from a receiving telephone set (4) to a transmitting telephone set (5) and vice versa. <IMAGE> |
| 申请公布号 |
AU580927(B2) |
申请公布日期 |
1989.02.02 |
| 申请号 |
AU19840030319 |
申请日期 |
1984.07.05 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKASHI SUGIO;MAKOTO OBATA;SHOTARO ITO |
| 分类号 |
F04D17/04;F04D29/28;F04D29/30;H04M1/00;H04M3/54 |
主分类号 |
F04D17/04 |
| 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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